Suppose Stephen breeds snakes and wants to optimize production of offspring with both black bodies and brown eyes, which are coded for by two genes with the recessive alleles b and e, respectively. In snakes, B codes for brown bodies and E codes for red eyes. Stephen crosses two heterozygotes that produce 544 offspring. How many of these 544 offspring are predicted to have both black bodies and brown eyes?
Answers
Answer:
34
Explanation:
B codes for brown bodies.
E codes of red eyes.
b and e together code for black bodies and brown eyes.
Heterozygous brown body snake would have the genotype Bb.
Heterozygous red eyes would have the genotype Ee.
Individuals that are heteozygous for both trait would have the genotype BbEe.
Crossing two heterozygous individuals:
BbEe x BbEe
Progeny:
9 BBEE
3 B_ee
3 bbE_
1 bbee
Recall that black bodies and brown eyes requires be, hence the ratio of the progeny with black bodies and brown eyes is 1/16.
If the total number of offspring produced is 544, the number predicted to have black bodes and brown eyes would be:
1/16 x 544 = 34
Related Questions
Complete the concept map describing the major lobes, fissures, and functional areas of the cerebral cortex.
Answers
Bb mates with BB?
Select one:
O a. All of the offspring will exhibit the
recessive trait.
O b. The dominant trait will show up in
about 75% of the offspring.
O c. All of the offspring will exhibit the
dominant trait.
O d. The recessive trait will show up in
about 50% of the offspring.
Answers
In complete dominance, the dominant alleles hide the expression of the recessive allele. Option C. All of the offspring will exhibit the
dominant trait.
What is complete dominance?
Complete dominance occurs when one of the alleles -the dominant one- completely hides the expression of the other allele -the recessive one- in heterozygous individuals.
Cross: BB x Bb
Gametes: B B B b
F1)
50% of the progeny will be homozygous BB
50% of the progeny will be heterozygous Bb
100% of the progeny will express the dominant trait.
The correct option is C. All of the offspring will exhibit the dominant trait.
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5. True or False: The medium moves along with a wave.
Answers
Answer:
false
Explanation:
it is not the medium that actually is traveling it’s the energy.
Describe the flexor and extensor muscles of the cat forelimb
Answers
Answer:
The cat forelimb has two sets of muscles, flexor and extensor muscles. The flexor muscles are located on the underside of the forearm and are responsible for flexing the wrist joint and the digits (toes). These muscles include the flexor carpi radialis, flexor carpi ulnaris, and flexor digitorum profundus.
On the other hand, the extensor muscles are located on the upper side of the forearm and are responsible for extending the wrist and digits. These muscles include the extensor carpi radialis, extensor carpi ulnaris, and extensor digitorum communis.
Together, the flexor and extensor muscles work to allow the cat to perform various activities such as climbing, running, and catching prey.
Name Why do you think some people are against genetic engineering?
Answers
name one nitrogen-containing that is present in Urine
Answers
Answer:
2 NH3 (ammonia) + CO2 + 3 ATP + H2O → H2N-CO-NH2 (urea) + 2 ADP + 4 Pi + AMP
Explanation:
I found the formula for creating urine innthe body, i think its ammonia that is created by the nitrogen excess abd waste produced by the body.
Hope this helps
How did the rise of discriminatory groups affect the failure of reconstruction in south carolina?.
Answers
The advancements gained in South Carolina during Reconstruction were hampered by the emergence of hate groups like the Ku Klux Klan.
The development of hate groups like the Ku Klux Klan in South Carolina contributed significantly to Reconstruction's defeat. Black Americans were prevented from exercising their newly acquired political and social rights, such as voting and running for office, by these groups via the use of violence and intimidation. They also aimed to reinstate the previous social structure and uphold white supremacy. The ineffectiveness of the federal government in enforcing Reconstruction laws and safeguarding Black Americans from violent retaliation gave these groups more power and ultimately led to the breakdown of Reconstruction in South Carolina and other Southern states.
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september would the earth be experiencing a solstice or an equinox
how do you know
Answers
In September the earth will be experiencing an equinox
Equinoxes occur between March and September. When the Sun's rays strike the equator at midday and at a 90° angle, it is considered an equinox. It stands for the idea that day and night have equivalent lengths. The sunset and dawn are separated by 12 hours everywhere on Earth. One may observe how quickly the sunset and dawn hours shift throughout the day the farther one goes from the equator.
Whereas, solstices occur in June and December. The contrary is visible close to the solstices. For a few days, both the sunset and sunrise appear to be constant. Over the course of the year, the time of day when the sun is directly overhead where one lives also gradually changes.
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The brain and spinal cord are part of the _______ nervous system. The electrical charges that act as nervous signals are called _______. Jellyfish do not have a brain. Instead their nervous system is called a _______. After nervous systems began to develop in bilaterally symmetric animals, some developed ventral, or front, nerve cords, while chordates developed _______ nerve cords. Skeletons that allow for movement by using muscles and squeezing liquid to change the body shape are called _______ skeletons. _______ do not grow with arthropods, and so occasionally must be shed and regrown from chitin. Muscles move endo- and exoskeletons by _______. _______ is the joining of two gametes called sperm and egg. A fish that lays her eggs in a cluster is initiating _______ fertilization. _______ are an adaptation by reptiles to allow for reproduction and embryo development on land. Describe three different strategies used by three different animals to thermoregulate. If you see a snake coiled up in a sunny patch of grass, what can you probably conclude about the type of thermoregulator it is. Why?
Answers
The brain and spinal cord are part of the central nervous system.
The electrical charges that act as nervous signals are called action potentials or nerve impulses.
Jellyfish do not have a brain. Instead, their nervous system is called a nerve net.
After nervous systems began to develop in bilaterally symmetric animals, some developed ventral nerve cords, while chordates developed dorsal nerve cords.
Skeletons that allow for movement by using muscles and squeezing liquid to change the body shape are called hydrostatic skeletons.
Exoskeletons do not grow with arthropods, and so occasionally must be shed and regrown from chitin.
Muscles move endo- and exoskeletons by contracting and relaxing.
Fertilization is the joining of two gametes called sperm and egg.
A fish that lays her eggs in a cluster is initiating cluster or mass fertilization.
Amniotic eggs are an adaptation by reptiles to allow for reproduction and embryo development on land.
Describe three different strategies used by three different animals to thermoregulate.
Elephants: Elephants thermoregulate by using their large ears as cooling devices. They flap their ears to increase surface area and enhance heat loss through evaporative cooling.Desert Lizards: Desert lizards employ behavioral thermoregulation by basking in the sun to absorb heat and warming their bodies. They also retreat to shade or burrows to avoid excessive heat when needed.Penguins: Penguins have a unique thermoregulation strategy. They huddle together in large groups to conserve body heat and shield themselves from the cold Antarctic winds, effectively reducing heat loss and maintaining body temperature.If you see a snake coiled up in a sunny patch of grass, what can you probably conclude about the type of thermoregulator it is. Why?
If you see a snake coiled up in a sunny patch of grass, you can probably conclude that the snake is an ectotherm. Ectotherms rely on external heat sources, such as the sun, to regulate their body temperature. By basking in the sun, the snake absorbs heat, which helps raise its body temperature to a suitable level for proper physiological functioning.
Answer:
1. central
2. action potential
3. nerve net
4. dorsal
5. hydrostatic
6. Exoskeletons
7. contraction/contracting
8. Fertilization
9. external fertilization
10. Eggs
11. Animals with fur thermoregulate by panting. Winged birds will flap against their mouths/heads to dissipate heat. Humans will produce sweat to evaporatively cool. Polar bears have developed blubber. Bears drop body temperatures during hibernation.
12. Seeing a snake using the warmth of the sun leads us to conclude that it is likely a thermo conformer that cannot produce its own body heat.
Though consumed by millions of people, mushrooms are related to which infectious agent? A. bacteria B. fungi C. parasites D. viruses
Answers
B. fungi becaus thats just how it is
Therefore, the independent variable was _____, and the dependent variable was ____
Answers
Answer:
independent variable = magnification
dependent variable = the amount of cell organelles seen
Explanation:
⭐What is an independent variable?
the variable that is being tested and modified to produce different results (the dependent variable)⭐What is a dependent variable?
the variable that results from testing and modified the dependent variable is dependent on the independent variableYou want to change and alter the magnification to see how many cell organelles you will see.
Therefore, the magnification is the INDEPENDENT variable.
Therefore, how many organelles you will see is the DEPENDENT variable.
⭐if this response helped you, please mark it the "brainliest"!⭐
Is a crystal alive? Why or why not?
Answers
Answer:
A crystal is an inorganic (not alive, not from something alive) homogeneous solid (meaning a solid with the same properties at all points) with a three-dimensional, repeated ordering of atoms or molecules. ... Crystals grow in one of three primary ways: from a vapor, from a solution or from a melt.
In dogs a loud bark(B) is dominant over a soft bark(b). Also, a long coat (L ) is dominant to a short coat(l). Show a cross between a heterozygous loud, heterozygous long coat dog and another heterozygous loud, heterozygous long coat dog.
Answers
The Punnett square for the cross between a heterozygous loud, heterozygous long coat dog and another heterozygous loud, heterozygous long coat dog would be:
| L l
---------------
B | BL | B l |
b | bL | bl |
---------------
Each box in the Punnett square represents a possible offspring genotype. The letters on the top and left side of the square represent the alleles from one parent, and the letters on the top and bottom represent the alleles from the other parent.
From the Punnett square, we can see that there are four possible genotypes for the offspring: BL, B l, bL, and bl. The uppercase letters represent the dominant traits (loud bark and long coat), and the lowercase letters represent the recessive traits (soft bark and short coat).
The ratio of genotypes in the offspring is 1 BBLL : 2 BBLl : 1 BbLL : 2 BbLl : 1 bbLL : 2 bbLl : 1 bbl.
The ratio of phenotypes in the offspring is 3 loud, long coat : 3 loud, short coat : 1 soft, long coat : 1 soft, short coat.
Joey's class is learning about atoms. For homework, his teacher has the class draw a model of an atom. The model must show three types of particles—protons, neutrons, and electrons. The protons and neutrons must be shown in the atom's central nucleus, and the electrons must be shown outside the nucleus.
Answers
Answer:
There are no electrons in the atom.
Explanation:
The electron is a subatomic particle, symbol e⁻ or β⁻ , whose electric charge is negative one elementary charge. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure.
Unlike protons and neutrons, which are located inside the nucleus at the center of the atom, electrons are found outside the nucleus. Because opposite electric charges attract each other, negative electrons are attracted to the positive nucleus.
How does the cardiovascular system and respiratory system work with each other?
Answers
What should be done about lion-
fish ownership in hyme & Commercial/
education aquariums?
Answers
Lionfish co-promotes the eradication of invasive and invasive lionfish through lionfish hunter education outreach and direct hunting campaigns.
Invasive lionfish are a threat to native fish and the environment in the Atlantic waters of the United States. Invasive species can lead to the extinction of native flora and fauna, reduce biodiversity, compete with native species for limited resources, and alter habitats.
Participating in the Lionfish Derby helps reduce populations in certain areas and dive sites. Ordering something like a lionfish on your menu when you go out for lunch or dinner can also be very helpful as it creates an incentive and economic reason for more divers to catch more of this particular species. Lionfish colonies are edible and considered a delicacy so control methods should include harvesting lionfish colonies.
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Which is a biotic factor?
Answers
Answer:
a living organism that shapes its environment
Explanation:
hope this helps
Match the following coenzyme/cofactor with its function by choosing its letter next to its function. A. TetrahydrobiopterinB. NAD+C. S-adenosylmethionine (SAM)D. FADE. BiotinF. TetrahydrofolatePreferred for transfer of methyl groups.Transfers CO2.Hydride transfer.Transfers single carbon units.Hydrogen transfer.Participates in redox reactions.
Answers
To answer this question we need to analyze the function of each element in the list some are cofactors others are enzymes and this gives also a clue of their function, an enzyme will catalyze a reaction meanwhile a cofactor is a non-protein element that helps the enzyme (protein) to carry out its catalytic function.
A. Tetrahydrobiopterin: is a cofactor that helps degradation of fenilalanin and biosynthesis of some neurotransmitters, helping hydroxylases.
B. NAD+: Is also a cofactor and also is involved in energy storage.
C. S-adenosylmethionine (SAM): Is a cofactor, that helps in the transfer of methyl groups.
D. FAD: Is a coenzyme, involved in energy transfer and in redox reactions.
E. Biotin: Is a vitamin that intervenes in the carbohidratrate and fatty acids metabolism
F. Tetrahydrofolate: Is a coenzyme that is involved in the reaction with amino acids and nucleic acids.
Preferred for transfer of methyl groups. C
Transfers CO2. E
Hydride transfer. B
Transfers single carbon units. F
Hydrogen transfer.D
Participates in redox reactions. A, but also B and D are in this category as FADH2, and NAD+ acts as ion donors or accept ions, so the three are correct.
Finally, we must not forget that hydride transfer, hydrogen transfer imply the transfer of hydrogen and are also involved in redox reactions, so the three concepts must be aproached carefully.
Deer mice are usually dark brown and live in forests with dark soil. However, the deer mice in the Sand Hills of Nebraska are lighter brown and live in an area with light, sandy soil.
Based on this information, what ,begin emphasis,most,end emphasis, likely caused the change in the Sand Hills deer mice?
Answer options with 4 options
A.
Lighter colored mice were preferred by females.
B.
Lighter colored mice came from snowy habitats in the north.
C.
Lighter colored mice had more dominant genes in their new habitat.
D.
Lighter colored mice were more likely to avoid predators and to reproduce.
Answers
Lighter colored mice were more likely to avoid predators and to reproduce. Therefore, option (D) is correct.
The lighter brown coloration of the deer mice in the Sand Hills of Nebraska is likely an adaptation that provides them with a survival advantage in their specific habitat. The light, sandy soil in the area may offer better camouflage for lighter colored mice, making them less visible to predators and increasing their chances of survival.
As a result, these mice would have a higher likelihood of successfully reproducing and passing on their lighter coloration traits to future generations.
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A cell has two pairs of submetacentric chromosomes, which we will call chromosomes IA, IB, IIA, and IIB (chromosomes IA and I B are homologs, and chromosomes IIA and IIB are homologs). Allele M is located on the long arm of chromosome IA and allele m is located at the same position on chromosome IB. Allele P is located on the short arm of chromosome IA, and allele p is located at the same position on chromosome IB. Allele R is located on chromosome IIA and allele r is located at the same position on chromosome IIB.
A. Draw these chromosomes, identifying alleles M, m, P, p, R, and r as they would appear in metaphase I of meiosis. Assume there is no crossing over.
B. Taking into consideration the random separation of chromosomes in anaphase I, draw the possible types of gametes that might result from this cell’s undergoing meiosis. Assume that there is no crossing over.
Answers
Answer:
A) Allelic position in the chromosomes:
IA ----------M------------:-----------P----
IB ----------m------------:-----------p----
IIA -----------------R--------------------:---------------------
IIB -----------------r---------------------:---------------------
B) Types of gametes (assuming there is no crossing over):
MPR; MPr; mpR; mpr.
Explanation:
In submetacentric chromosomes, the centromere is located near to the middle of the chromosomes.
Since these two pairs of homologous chromosomes do not undergo crossover, the resulting gametes after meiosis may have four (4) allele combinations.
the ultimate goal of cellular respiration is to produce atp. cells use two different mechanisms to do this: substrate level phosphorylation and oxidative phosphorylation.
Answers
The ultimate goal of cellular respiration is to produce ATP, a molecule that powers the work of cells.
Cellular respiration is utilized to produce usable ATP energy to help numerous different responses in the body. ATP is especially significant for vigorously troublesome responses that would somehow not happen without an energy input.
There are three principal steps of cellular respiration: glycolysis; the citrus extract (TCA) or the Krebs cycle; and the electron transport chain, where oxidative phosphorylation happens. The TCA cycle and oxidative phosphorylation require oxygen, while glycolysis can happen in anaerobic circumstances.
A definitive objective of cellular respiration is synthesis of ATP, which is utilized to control a large portion of the cell's exercises. Cells make ATP by two generally various components. Substrate-level phosphorylation moves a phosphate straightforwardly to ADP.
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(Complete question) is:
The ultimate goal of cellular respiration is to produce ______,a molecule that powers the work of cells.
Which of the following is NOT a
main component of soil?
A. air
B. water
C. carbon dioxide
D. organic matter
Answers
Answer:
C
Explanation:
If you were beamed into the Earth's outer core and you wanted to move to somewhere cooler you would:
Answers
Why do the colors in the light spectrum bend at different angles when they pass through a prism?
The colors in the light spectrum have the same wavelength.
The colors in the light spectrum have different wavelengths.
The colors in the light spectrum have different refractive indices.
The colors in the light spectrum have the same refractive indices.
Answers
Answer:
Since the differences in the refraction index between the air and the glass, light bends once it enters the prism. Since the sides are angled the light bends even more when it leaves the prism.
Explanation:
What was the problem with the Vostok 1 spacecraft that initially sent the first human into space?
O A. An oxygen tank was punctured.
O B.
O C.
O D.
The outer layers were not prepared for the high temperatures produced by friction.
The designers of the spacecraft failed to include an ejection system.
It was not built for a safe landing.
Answers
Answer:
D
Explanation: Vostok 1 circled Earth at a speed of 27,400 kilometers per hour with the flight lasting 108 minutes. Vostok's re-entry was controlled by a computer but it was not built for a safe landing so Gagarin(the first human to space) did not land inside of capsule. Instead, he ejected himself from the spacecraft and landed by parachute.
What is TRUE about value conflicts?
Working through these conflicts can help with self-awareness.
Experiencing conflicts between core values is very rare.
It is best to ignore value conflicts when applying for a job.
There is usually one clear winner in each conflict someone faces.
Answers
The statement that is true about value conflicts is: Working through these conflicts can help with self-awareness.
Value conflicts occur when an individual's personal values or beliefs are in conflict with each other or with the values of others. Working through these conflicts can lead to increased self-awareness as individuals explore their beliefs, priorities, and the reasons behind their values. By engaging in reflection and introspection, individuals can gain a deeper understanding of themselves and their values, which can contribute to personal growth and development.
Experiencing conflicts between core values is not necessarily rare as individuals may encounter situations where their values come into conflict, and they must make difficult choices or find ways to reconcile them.
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what molecule is taken into to start the light dependent reaction
Answers
Answer: ATP, and NADPH. These energy-carrying molecules are made in the stroma.
How do Demetri's results show that digestive enzymes are crucial to maintaining homeostasis in the body?
Answers
In addition to breaking down food so that the nutrients may be absorbed, enzymes also generate vitamins like biotin and vitamin K and protect the body from dangerous microorganisms.
What is homeostasis?
Biological system's ability to self-regulate and maintain stability while responding to shifting environmental factors is known as homeostasis.
The body needs a steady supply of nutrients from food that has been digested. They are crucial for maintaining health and carrying out bodily tasks. The body may absorb and use food that has been broken down by the digestive system.
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Transcription of the developmental gene M is influenced by two different proteins: B and H. Studies of single and double mutants generated the following information:
In mutants lacking B, transcription of M does occur
In mutants lacking H, transcription of M does not occur.
In double mutants lacking B and H, transcription of M does occur.
Based on this information, put these genes in order in a developmental pathway. Use arrows and t-bars between the genes as appropriate. Choose the correct identity of each below.
Gene 1 1st Symbol Gene 2 2nd Symbol Outcome
Answers
Answer:
B --I H >> M transcribed
Explanation:
Reverse genetics is a classical approach used in molecular genetics to elucidate gene function in a signaling gene network. This technique consists of producing loss of function mutations in genes of interest in order to analyze their phenotypic effects in the downstream signaling pathway.
In this case, the mutation in B didn't affect the expression of the developmental gene M, together with the other mutant lines, this experiment indicates that B is a downstream suppressor of H (since further experiments show that B plays a role in the signaling pathway). Moreover, the mutation in the gene H affects the expression of M, thereby showing that H acts as a downstream activator of M. Finally, B-H double mutants did neither affect the expression of M, thereby showing that M transcription is dependent of the interaction between B and H.
Knowing that proteins B and H interact with each other, and they influence the expression of the M gene, we can propose the following developmental pathway B gene --| H gene >> M gene
------------------------------
Gene pathways refer to the regulation of genes expression by turning them on and off. Many genes and proteins might be involved in this process, each of them playing significant roles in the signaling pathway.
Available data:
The transcription of gene M depends on proteins H and BIf protein B is lacking, gene M is transcriptedIf protein H is lackin, gene M is not transcriptedIf B and H are lackin, gene M is transcriptedAccording to this information, we can assume that,
The mutation in protein B did not influence the transcription of the gene M because even when B is lacking, the gene is transcripted anyway.
However, we can see that H affected M transcription. The mutation in the H protein influenced the gene transcription.
Mutations in proteins H and B did not influence the transcription of the M gene because, in the absence of both proteins, the gene was expressed.
Probably proteins B and H interact with each other, and this interaction influences the M gene transcription.
The developmental pathway is then as follows,
B gene --| H gene >> M gene
------------------------------------
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How do ATP and NAPDH connect light-dependent and light-independent reactions in photosynthesis
Answers
ATP and NADPH serve as key molecules that connect the light-dependent and light-independent reactions in photosynthesis. They play crucial roles in transferring energy and reducing power between the two processes, ensuring the overall efficiency of photosynthesis.
1. Light-Dependent Reactions: These reactions occur in the thylakoid membranes of the chloroplasts and convert light energy into chemical energy. During this process, light energy is absorbed by chlorophyll and other pigments, leading to the generation of ATP and NADPH.
2. ATP Generation: The absorbed light energy is used to power the electron transport chain, which pumps protons across the thylakoid membrane, creating a proton gradient. The flow of protons back across the membrane through ATP synthase generates ATP from ADP and inorganic phosphate.
3. NADPH Generation: Simultaneously, the energized electrons from the electron transport chain are transferred to NADP+, reducing it to NADPH. This process requires the input of high-energy electrons and protons.
4. Light-Independent Reactions (Calvin Cycle): ATP and NADPH generated during the light-dependent reactions are utilized in the stroma of the chloroplasts to fuel the Calvin cycle. Here, carbon dioxide is fixed and converted into glucose through a series of enzymatic reactions.
5. ATP Utilization: ATP provides the necessary energy to power the various enzyme-catalyzed reactions in the Calvin cycle. It is used to drive the carboxylation of ribulose bisphosphate (RuBP), the regeneration of RuBP, and other key steps in the cycle.
6. NADPH Utilization: NADPH functions as a reducing agent in the Calvin cycle, providing the necessary high-energy electrons to convert carbon dioxide into glucose. It acts as a source of electrons in the reduction of 3-phosphoglycerate to glyceraldehyde 3-phosphate (G3P).
7. Recycling of ADP, NADP+, and Pi: As ATP is hydrolyzed to ADP and inorganic phosphate (Pi) during the Calvin cycle, ADP and Pi are regenerated in the light-dependent reactions. Similarly, NADP+ is regenerated from NADPH.
8. Continuous Cycle: The production of ATP and NADPH in the light-dependent reactions and their utilization in the light-independent reactions create a continuous cycle, ensuring the flow of energy and reducing power required for photosynthesis.
In summary, ATP and NADPH act as energy and reducing power carriers, respectively, connecting the light-dependent reactions that capture light energy with the light-independent reactions that utilize this energy to produce glucose. Their continuous generation and utilization ensure the efficiency and functionality of photosynthesis.
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