Answers
When Gregor Mendel crossed true-breeding tall plants with true-breeding short plants, all the offspring were tall because the allele for tall plants is dominant.
Gregor Mendel gave three laws of heredity of characters through the use of pea plant. When he crossed true breeding tall plants, it means that the pair of genes are homozygous and they can be represented as TT, because tall 'T' is the dominant trait. When he considered true breeding short plants, it means that the pairs of genes are again homozygous and can be represented as tt as small 't' is a recessive trait. Thus when segregation of pair of genes takes place and the traits transferred to off-springs are determined, the presence of dominant character in all four possibilities causes all the off-springs to be dominantly tall.
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Related Questions
Question7 of 20
Which part of an electric motor transforms electrical energy intO mechanical
energy?
A. The rotating commutator
B. The turning electromagnet
C. The electric power source
D. The permanent magnets
Answers
Answer:b. the turning electromagnet
Explanation:
Answer:
B.
Explanation:
The turning electromagnet
Organ system campaign advertisement
Answers
Introducing the Organ System Campaign - advocating for the health and well-being of your body's organ systems!
Our goal is simple - to raise awareness about the importance of taking care of all your body's organ systems. Each organ system plays a vital role in keeping your body functioning properly, and neglecting any one of them can have serious consequences for your overall health.
From the circulatory system, which pumps blood and oxygen to your organs and tissues, to the respiratory system, which brings in oxygen and expels carbon dioxide, to the digestive system, which breaks down food and absorbs nutrients, every system is crucial.
Our campaign will focus on educating people about healthy habits, such as eating a balanced diet, staying hydrated, getting enough exercise, and getting regular check-ups with your doctor. We want to empower individuals to take control of their health and make choices that benefit their body's organ systems.
Join us in the fight for healthy organ systems - because a healthy body is a happy body!
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in a hypertonic solution, water will move ____ because there are too many solutes outside of the cell ?
A.both into and out of the cell
B. Out of the cell
C.into the cell
Answers
Answer:
B because it's a hypertonic solution... that means it's concentrated so water moves out of the cell into the solution
Answer: B
Explanation: hyper means above.
The air is less dense at higher altitude how does this affect climate
Answers
what biological macromolecule is made up of monomers like the one shown below
Answers
Answer:
C. Protein
Explanation:
Proteins contain C, H, O, and N.
Most notably, they contain an R group (aka a side chain), which is different for each for amino acid. The R group is symbolized by the letter R in the image.
Which characteristic of life best describes the process of homeostasis?
Answers
Answer:
Responding to stimuli / the environment
Explanation:
Answer:
A
Explanation:
Which of the following groups
of animals could be found in
temperate grasslands?
A. deer, fruit-eating birds, lizards, and snakes
B. bison, longhorns, burrowing animals, birds this
that nest on the ground, and foxes
C. migratory animals, oxen, caribou, and artic
foxes
D. lions, rhinoceros, giraffes, and elephants
Answers
During osmosis, the semi-permeable membrane is one that:
A. does not allow any particles to pass through.
B. allows only very small particles or water through.
C. allows only very large particles through.
D. decides what particles to let through based on cell signals.
Answers
A semi permeable membrane allows water molecules to pass through it easily but not solute molecules
Your friend is standing on the other side of a canyon. If an Echo returns in 0.15 seconds and the temperature is 25°C. How far away is you from your friend?
Answers
The distance from you to your friend is approximately 22.5 meters.
The speed of sound at 25°C is about 343 meters per second. The time it takes for the sound to travel to the other side of the canyon and back is 0.15 seconds, so the total distance traveled by the sound is twice the distance between you and your friend. Using the equation distance = speed x time, we can calculate the distance between you and your friend as follows:
distance = speed of sound x time / 2distance = 343 m/s x 0.15 s / 2distance = 22.5 metersTherefore, your friend is approximately 22.5 meters away from you across the canyon.
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Identify all of the following test conclusions that support the hypothesis that bats are an
important means of controlling insect pests.
Answers
Answer:
they keep the population of certain insects under control for example mosquitos
Explanation:
my answer is also my explanation
The theory of endosymbiosis proposes that eukaryotes descended from a primitive combination of both archaea and bacteria. What evidence supports this theory?
Answers
The theory of endosymbiosis proposes that eukaryotes descended from a combination of both archaea and bacteria. Evidence that supports this theory includes the similarities between mitochondria and chloroplasts to free-living bacteria, the presence of double membranes around mitochondria and chloroplasts, and the fact that mitochondria and chloroplasts have their own DNA.
Explanation:
The theory of endosymbiosis proposes that eukaryotes descended from a combination of both archaea and bacteria. Evidence that supports this theory includes the similarities between mitochondria and chloroplasts to free-living bacteria, the presence of double membranes around mitochondria and chloroplasts, and the fact that mitochondria and chloroplasts have their own DNA.
Mitochondria and chloroplasts contain some of the same enzymes and transport systems as bacteria, and are similar in size and shape to bacteria. In addition, they both reproduce by binary fission, similar to bacteria. The presence of double membranes around mitochondria and chloroplasts also supports the theory of endosymbiosis, as this suggests that the organelles were engulfed by the host cell and retained their own membranes.
Finally, mitochondria and chloroplasts have their own DNA, which is circular like bacterial DNA. The DNA of mitochondria and chloroplasts also lacks histones, which are present in eukaryotic DNA, and is more similar to bacterial DNA in terms of gene expression and replication.
Together, these lines of evidence support the theory of endosymbiosis and suggest that mitochondria and chloroplasts were once free-living bacteria that were engulfed by a host cell and evolved into the organelles found in eukaryotic cells today.
For her research, Ananya frequently accesses a new database that contains functional data relating to the human genome. This database was likely created during what phase of the ENCODE project?
Group of answer choices
pilot phase
analysis phase
sequencing phase
technology development phase
Answers
The ENCOD project was a collaborative effort aimed at identifying all functional elements in the human genome. It consisted of several phases, including the pilot phase, technology development phase, sequencing phase, and analysis phase.
What is ENCOD?
The ENCODE (Encyclopedia of DNA Elements) project was a collaborative research effort aimed at identifying all functional elements in the human genome. The project was launched in 2003 with the goal of creating a comprehensive catalog of functional elements, such as genes, regulatory elements, and chromatin modifications, and to understand how these elements work together to control gene expression and cellular function.
Since the database that Ananya accesses contains functional data, it was likely created during the analysis phase of the ENCODE project. During this phase, the raw data generated in the sequencing phase was analyzed and interpreted to identify functional elements such as genes, regulatory regions, and chromatin modifications.
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plz help im giving a brainliest to the first person to answer
Answers
Answer:
D
Explanation:
because the stars dont move the earth does
gene mutations can occur
a. exposure to chemical mutagens
b. exposure to gamma radiations
Answers
Answer:
b
Explanation:
With asexual reproduction is the genetic information the same or different?
Answers
Answer:
same
Explanation:
Asexual reproduction gives rise to two physically and genetically identical daughter cells. Thus, the genetic information remains the same.
In asexual reproduction, the daughter cells divide through the process of mitosis, which results in two daughter cells from one parent cell.
In mitosis, the chromosomes which are duplicated segregate into the two emerging cells around which then a nuclear membrane forms. In this case, there is no recombination by crossing-over or chiasmata formation that happens in the case of meiosis.
It is the recombination by crossing-over or chiasmata formation that results in varying genetic information.
Thus, as these processes do not happen in mitosis, genetic information remains the same.
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e Sciences NSC MDE/June In certain plants, an oval shape is dominant (H) over round shape (h) and thick cell walls (B) are dominant over thin (b) A cross was carried out between two heterozygous plants for both characteristics. 2.3.1 Give the: (a) Allele for round shape.
Answers
The allele for round shape in this case would be lowercase 'h' (h), as it is recessive to the dominant oval shape allele (H).
In this scenario, the dominant allele for oval shape is represented by 'H,' while the recessive allele for round shape is represented by 'h.' Since the oval shape is dominant, an individual with one copy of the dominant allele (H) and one copy of the recessive allele (h) will display the oval shape phenotype. The round shape phenotype will only be expressed when an individual carries two copies of the recessive allele (hh). In the given cross between two heterozygous plants (Hh), there is a 25% chance of producing offspring with the round shape phenotype if both parents pass on their recessive allele (h) to the offspring.For more such questions on Allele:
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The chemical equation for photosynthesis shown below . Which of the following statements about photosynthesis is true?
Answers
Answer
The equation is glucose + oxygen ® carbon dioxide + water and energy is produced in the form of ATP.
At which stage of meiosis I does the exchange in genetic material between homologous chromosomes result in recombinant chromosomes?
prophase 1
metaphase I
anaphase 1
telophase 1
Previous
Answers
Answer:
Prophase 1
Explanation: idonknow
Answer:
A. Prophase 1
Explanation:
Based on these data what happened between 2 minutes and 3 minutes?
Answers
Answer:
C
Explanation:
snail stopped moving, as there is no change in distance travelled.
The seed above has adaptations that aid in its dispersal via
A. animals.
B. water.
C. wind.
D. gravity.
Answers
Answer: A. Animals
Explanation:
On Isle Royale, wolves are the main predators of moose. The graph shows the changing wolf and moose populations on the island over a 50-year time span.
The graph plots the populations of moose and wolves in separate lines from 1955 to 2005. The two populations appear to follow opposite trends: when one population is higher, the other population is lower.
Which statement provides the strongest explanation for the trends in the two populations?
A. The populations of predators and prey are limited by abiotic factors only.
B. Predation acts a density-dependent limiting factor on prey, but not on predators.
C. Predation acts as a density-independent limiting factor on predators, but not on prey.
D. Predator-prey relationships act as density-dependent limiting factors on both predators and prey.
Answers
Answer:
D
Explanation:
The statement provides the strongest explanation for the trends in the two populations is predator-prey relationships act as density-dependent limiting factors on both predators and prey. Hence option D is correct.
What is predator?Predator is defined as an organism that mostly hunts and consumes other organisms for food. The term "predator" refers to a species that hunts and eats specific other organisms. The animals that predators consume are referred to as prey.
Predator-prey interactions and prey-predator interactions are both crucial density-dependent population controls. The other population's size determines how each population changes in size. When the population density reaches a particular point, a density-dependent limiting factor takes effect. Competition, parasitism, and disease are other instances of density-dependent limiting variables.
Thus, the statement provides the strongest explanation for the trends in the two populations is predator-prey relationships act as density-dependent limiting factors on both predators and prey. Hence option D is correct.
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BIOLOGY PAPER 2
Eplain the various ways in which a typical cell is adapted to its functions 20 mks
2) Explain how the various specialized cells are modified to carry out their functions in plants and
animals 20 mks
nfortions 20 mke
Answers
Answer:
Presence of food vacuoles; involved in digestion of engulfed food; Chloroplasts presence; Are sites for photosynthesis in plant cells; Have cellulose cell wall; rigid as to maintain the shape of the cell and offer mechanical support.
asssap will give 100 poits
Which is most likely a statement that indicates someone is making a pseudoscientific claim about how people can improve their lives?
Lab tests show that this food has vitamins and zero fat.
You can read these books by scientists to learn more.
You have to believe the exercise works before you try it.
Lab tests on mice suggest this diet pill may work for humans.
Answers
Answer:
"You have to believe the exercise works before you try it" would be the pseudoscientific claim.
what makes you believe that the vegetation has been grown by farmers and has not grown naturally by itself over time
Answers
Organized patterns, irrigation systems, specific crop varieties, and agricultural practices indicate human intervention in vegetation growth, suggesting farming activity.
Determining whether vegetation has been grown by farmers or has grown naturally over time can be assessed by considering various factors. Firstly, the presence of organized patterns or rows of crops suggests intentional cultivation by farmers. The use of irrigation systems, terraces, or other agricultural infrastructure further supports human intervention. Additionally, the selection of specific crop varieties or the presence of non-native plant species may indicate deliberate cultivation. Observation of crop rotation, weeding, and fertilization practices can also provide evidence of human involvement. Historical records or local knowledge of agricultural practices in the area can provide further context. Conversely, natural vegetation tends to exhibit a more random distribution and includes a diverse range of native plant species. Considering these factors collectively can help differentiate between vegetation that has been grown by farmers and vegetation that has naturally grown over time.For more such questions on Vegetation:
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IMMEDIATE ANSWER NEEDED - BRAINIEST
Today, what type of degree do most astronomy positions require?
a high school diploma or bachelor’s
a bachelor’s or master’s
a master’s or PhD
a PhD or postdoc
Answers
Answer:
a PhD or postdoc
What is the difference between a large subnit in a small subnit
Answers
Explanation:
The small ribosomal subunit has cleft in the upper third, and it the subunit which binds to the -AGGAGGU - sequence of the mRNA molecule. The large subunit is more complex and has two protuberances, a valley and a stalk as well as a polypeptide exit site.
what is the difference between Eukaryotes and prokaryotes
Answers
Answer:
Prokaryotes are unicellular organisms that lack membrane-bound structures, the most noteworthy of which is the nucleus. Prokaryotic cells tend to be small, simple cells, measuring around 0.1-5 μm in diameter.While prokaryotic cells do not have membrane-bound structures, they do have distinct cellular regions. In prokaryotic cells, DNA bundles together in a region called the nucleoid.Eukaryotes are organisms whose cells have a nucleus and other organelles enclosed by a plasma membrane. Organelles are internal structures responsible for a variety of functions, such as energy production and protein synthesis.Eukaryotic cells are large (around 10-100 μm) and complex. While most eukaryotes are multicellular organisms, there are some single-cell eukaryotes.Hello :) i have a essay due tomorrow, can anyone help me make connections between the digestive, circulatory, nervous, skeletal, respratory, and muscular system? i need to list how 4 parts of each system help it work too. theres a few parts i seem to be stuck on. currently midnight as im writing this. help is appreciated! thank you!
Answers
The human body contains trillions of cells, 78 different organs, and more than 60,000 miles of blood vessels if you stretched them end-to-end. Incredibly, all of these cells, vessels, and organs work together to keep you alive.
Each organ belongs to one of ten human body systems. These body systems are interconnected and dependent upon one another to function. Your heart does not beat unless your brain and nervous system tell it to do so. Your skeletal system relies on the nutrients it gains from your digestive system to build strong, healthy bones.
A body system is a group of parts that work together to serve a common purpose. Your cardiovascular system works to circulate your blood while your respiratory system introduces oxygen into your body.
Each individual body system works in conjunction with other body systems. The circulatory system is a good example of how body systems interact with each other. Your heart pumps blood through a complex network of blood vessels. When your blood circulates through your digestive system, for example, it picks up nutrients your body absorbed from your last meal. Your blood also carries oxygen inhaled by the lungs. Your circulatory system delivers oxygen and nutrients to the other cells of your body then picks up any waste products created by these cells, including carbon dioxide, and delivers these waste products to the kidneys and lungs for disposal. Meanwhile, the circulatory system carries hormones from the endocrine system and the immune system’s white blood cells that fight off infection.
Each of your body systems relies on the others to work well. Your respiratory system relies on your circulatory system to deliver the oxygen it gathers, while the muscles of your heart cannot function without the oxygen they receive from your lungs. The bones of your skull and spine protect your brain and spinal cord, but your brain regulates the position of your bones by controlling your muscles. The circulatory system provides your brain with a constant supply of oxygen-rich blood while your brain regulates your heart rate and blood pressure.
Even seemingly unrelated body systems are connected. Your skeletal system relies on your urinary system to remove waste produced by bone cells; in return, the bones of your skeleton create a structure that protects your bladder and other urinary system organs. Your circulatory system delivers oxygen-rich blood to your bones. Meanwhile, your bones are busy making new blood cells.
Working together, these systems maintain internal stability and balance, otherwise known as homeostasis. Disease in one body system can disrupt homeostasis and cause trouble in other body systems. If you become ill with the AIDS virus that affects your immune system, for example, you may develop pneumonia in your respiratory system, a yeast infection in your reproductive system, Candida that affects your esophagus in your digestive system, or the skin cancer known as Kaposi’s sarcoma.
A baby with blood group AB I born into a family where the mother has blood group type B and the father has type O
Determine whether the husband is the biological father of the baby
Answers
The baby AB received the IB allele from the mother and the IA allele from another person. The husband is not the biological father of the baby.
What are the blood type alleles?
Blood type is coded by a triallelic gene
IA allele is dominant over the i alleleIB is dominant over the i allele IA and IB are codominanti is the recessive alleleThe genotypes and phenotypes are
IAIA and IAi → Type AIBIB and IBi → Type BIAIB → Type ABii → Type 0
In the exposed example,
Baby → AB → IAIBMother → B → IBIB or IBiHusband → 0 → ii
The baby carries one IA allele and one IB allele.
The IB allele was inherited from the mother. The husband could only transmit a recessive allele i. But the baby does not carry any recessive allele.
The baby received the IB allele from the mother and the IA allele from another person.
The husband is not the biological father of the baby.
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How much time is needed for a 15,000 W engine to do 1,800,000 J of work ? (Power: P = W/t)
Answers
Answers:
T =120s
Explanation:
P=15,000
W=1,800,000 J
P=W/T
T=W/P
T=1,800,000 J/15,000W
=120s