Mendel's cross of the true-breeding round and wrinkled parents produced all round progeny peas in the F1 generation. Assume that round shape is dominant to wrinkled. What kind of cross was made in the P1 generation
Answers
The cross made in the P1 generation was a cross between true-breeding round and true-breeding wrinkled pea plants.
1. P1 Generation: Mendel started with two true-breeding parent plants—one with round peas and the other with wrinkled peas. True-breeding means that when these plants self-pollinate or cross-pollinate with similar plants, they consistently produce offspring with the same trait as the parent.
2. Cross: Mendel performed a cross between the true-breeding round and wrinkled parent plants. He transferred pollen from the round pea plant to the stigma (female reproductive organ) of the wrinkled pea plant. This cross is known as a monohybrid cross because it involves the inheritance of a single trait—pea shape (round or wrinkled).
3. F1 Generation: The offspring resulting from the cross in the P1 generation are referred to as the F1 (first filial) generation. In this case, all of the progeny peas in the F1 generation exhibited the round shape trait. This suggests that the round shape trait is dominant over the wrinkled shape trait, as all the F1 plants inherited the round shape from the round parent.
4. Dominance: The dominance of the round shape indicates that the round allele (symbolized as R) is dominant to the wrinkled allele (symbolized as r). The round shape trait masks the expression of the wrinkled shape trait in the presence of the dominant allele.
In summary, the cross made in the P1 generation involved a true-breeding round parent and a true-breeding wrinkled parent. The dominance of the round allele resulted in all round progeny in the F1 generation.
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Related Questions
Normal (or average) body temperature of humans is often thought to be 98.6 ∘
F. Is that number really the average? To test this, we will use a data set obtained from 67 healthy female volunteers aged 18 to 40 that were participating in vaccine trials. We will assume this sample is representative of a population of all healthy females. The mean body temperature for the 67 females in our sample is 98.85 ∘
F and the standard deviation is 0.852 ∘
F. The data are not strongly skewed. Use the Theory-Based Inference applet to find a 95% confidence interval for the population mean body temperature for healthy females. Round your answers to 2 decimal places, e.g. 0.75. The confidence interval is to eTextbook and Media Based on your confidence interval, is 98.6 ∘
F a plausible value for the population average body temperature or is the average significantly more or less than 98.6 ∘
F ? Explain how you are determining this. eTextbook and Media In the context of this study, was it valid to use the theory-based (t-distribution) approach to find a confidence interval? Yes No eTextbook and Media
Answers
Answer:
Explanation:
To find a 95% confidence interval for the population mean body temperature of healthy females, we can use the theory-based (t-distribution) approach since the sample size is relatively small (n = 67) and the population standard deviation is unknown.
Using the information provided, the mean body temperature for the sample is 98.85 °F, and the standard deviation is 0.852 °F. The formula for the confidence interval is:
Confidence Interval = sample mean ± (t-value * standard error)
First, we need to determine the t-value for a 95% confidence level with (n-1) degrees of freedom. In this case, the degrees of freedom are 67 - 1 = 66. Using a t-table or statistical software, the t-value for a 95% confidence level and 66 degrees of freedom is approximately 1.997.
Next, we calculate the standard error, which is the standard deviation divided by the square root of the sample size:
Standard Error = standard deviation / √sample size
= 0.852 / √67
≈ 0.104
Now we can calculate the confidence interval:
Confidence Interval = 98.85 ± (1.997 * 0.104)
Simplifying the calculation:
Confidence Interval ≈ 98.85 ± 0.208
Rounding to two decimal places, the 95% confidence interval for the population mean body temperature is approximately (98.64, 99.06) °F.
To determine whether 98.6 °F is a plausible value for the population average body temperature, we need to check if it falls within the confidence interval. In this case, since 98.6 °F is within the confidence interval of (98.64, 99.06) °F, it is a plausible value for the population average body temperature. This means that based on the sample data, there is no strong evidence to suggest that the average body temperature significantly differs from 98.6 °F.
In terms of using the theory-based (t-distribution) approach to find the confidence interval, it is valid in this study because the sample size is small and the population standard deviation is unknown. The t-distribution accounts for the uncertainty introduced by using the sample standard deviation to estimate the population standard deviation.
Competition between two kangaroos over a common mate would be
Answers
Answer:
intraspecific competition
Explanation:
Why must the number and type of atoms be the same in the products of a chemical reaction as in the reactants?
Answers
so can anyone explain these questions for me to have a better understanding
Answers
Answer:
Explanation:
not sure on the first one but number two is the sun (im pretty sure) and number three is all water is locked into an indefinate cycle that cannot be breached
Which of the following is an energy pyramid for the food web below?
Answers
grass → grasshopper → frog → snake → owl
Explanation:
It is the biggest energy pyramid for the food web as per the given diagram.
these are the possible energy pyramid for the food web
grass → grasshopper → frog → snake → owl
grass → rabbit → snake → owl
grass → rabbit → owl
As cell division proceeds in multicellular organisms, the cells differentiate. What is the primary effect of cell differentiation on the organism?.
Answers
In multicellular organisms, cell differentiation occurs while cell division occurs. The fundamental impact of cell differentiation on the organism It permits the organism to enlarge itself.
The importance of cell differentiation in multicellular organisms?A multicellular creature needs differentiated cells because they can carry out specialized tasks for the body. Specialization, though, has a price. The trade-off is that differentiated cells frequently lose their capacity to proliferate.Environmental variables can also affect cell differentiation and gene expression. For instance, temperature, salinity, and the amount of available nutrients can all affect how an organism's genes are expressed.The Himalayan rabbit's genes that control fur color are activated and inactivated in response to temperature.To learn more about Cell differentiation refer to:
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What is spatial and temporal resolution of QuickBird satellites?
Answers
A satellite or a man-made object placed in the earth's outer orbit. A satellite is an instrument that has many uses such as communication and used for space study programs. They play an important role in weather forecasting as well.
Quick Bird is an imaging system used in satellites to take high-resolution images for study. The difference between the spatial and temporal Quick bird in the satellite is based on the resolution. Temporal has more high resolution than spatial. The spatial resolution is 5 x 5 m whereas the temporal has 2.4 x 2.8 m.
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energy is converted from ___ into___?
Answers
Answer:
This means that we can convert electrical energy into heat energy and light energy, solar energy can be converted to chemical energy, potential energy can be converted into kinetic energy, Gravitational potential energy can be converted into kinetic energy etc.
Explanation:
Answer:
Chemical energy can be converted to electrical energy.
Thermal energy can be converted to heat energy.
Mechanical energy can be converted to electrical energy.
Nuclear energy can be converted to light energy and heat energy.
Explanation:
Identify the different parts of the sarcomere and label the following image using the words below.
Thin filament, sarcomere, thick filament, I Band, A Band, Z Line
Answers
The different parts of the sarcomere include:
Thin filamentsThick filamentsI bandA bandZ lineSarcomereWhat is sarcomere?A sarcomere is the basic contractile unit of muscle fiber.
Each sarcomere is known to be composed of two main protein filaments which is the actin and myosin.
The actin and myosin are the active structures responsible for muscular contraction. The most popular model that describes muscular contraction is called the sliding filament theory.
The structure of the sarcomere is traditionally described with dark and light bands which is visible under the microscope. This banding pattern in sarcomeres is due mainly to the arrangement of thick and thin myofilaments in each unit.
In conclusion, the main function of the myofibrils found in the sarcomere is to produce a muscular contraction in which the filaments slide over each other. The contraction is induced at the neuromuscular junction via the neurotransmitter called acetylcholine.
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1. Which of the following is the template for the production of RNA within a cell?
DNA
ATP
Protein
Carbohydrate
Question 18
1 pts
Answers
6. Which of the following is an example of equilibrium?
a. There is enough grass for a deer population to survive on
b. Deer are over-hunted by coyotes
c. The coyote population decreases, so the deer population increases
Answers
Equilibrium is a state in which opposing forces or influences are balanced. The coyotes over-hunting deer causes the deer population to go down, if the coyote population decreases and the deer population increases the two would be balanced.
What molecules does simple diffusion use in passive transport
Answers
Answer:
small nonpolar molecules
Explanation:
examples of these are oxygen, carbon dioxide and most lipids! these all enter and leave cells with simple diffusion.
a diagnostic procedure that involves removing a tissue sample from a patient.
a. lipotrispy
b. biopsy
c. pathogenesis
d. oncology
Answers
Answer:
b. biopsy
Hope this helps!
Answer:
Biopsy.
Biopsy is the removal of tissue for further medical examination or for science.
Hope this helps.
Azumayay
Which option identifies the most likely testable question in the following scenario? Scientists breed a group of fruit flies. They record the wing type of two parent flies and their offspring. Both of the parents had “normal” wings, but only 75 percent of the 1,000 offspring has “normal” wings. The other 25 percent have “vestigial” wings. This data helps the scientist’s draw their conclusions. Are different wing types of flies heritable? OR Is wing type a sex linked trait?
Answers
Answer:The different type of wing is most likely heritable, but i'm not sure.
Explanation:
A student used poster board to construct this model of a
section of DNA.
GATCGATC
||||||||
GATCGATC
a
Which statement describes this model of DNA?
O The model is accurate because it shows each base
splitting to form a double helix.
O The model is inaccurate because some typical bases
in DNA are missing.
O The model is inaccurate because the base pairs are
incorrect
O The model is accurate because it contains correctly
paired bases.
(
hp
Answers
The answer is C. The model is inaccurate because the base pairs are incorrect.
A fun way I remember how the bases pair with each other in DNA is A for apples, T for tree. A(adenine) and T(thymine) belong together, just as apples belong in trees. C is for car and G is for garage. C(cytosine) and G(guanine) belong together just as a car belongs in the garage. I hope this helped!
The blood Group of Mother is O. The Blood Group of the Child is B. Man Exonerated If He to Blood Group?
Answers
Answer:
If the mother's blood type is O, and the child's blood type is B, a man would be exonerated from paternity if he has blood type A or O.
Explanation:
In the above case, if a mother has blood type O and her child has blood type B, a man can be exonerated from paternity only if his blood type is A or O, and responsible if he is type B or AB.
The blood type is defined by the presence of surface antigens in the red blood cell, called A and B. The presence of each antigen is determined by a gene present on the parental chromosomes.
Blood type A corresponds to the presence of gene A, and its genotypic expression can be A/A or A/O. Type B blood, whose genotype is B/B or B/O, is due to the presence of a gene containing the B antigen. AB blood —due to codominance— has one gene for A and another for B, with genotype A/B. Blood type O, characterised by the absence of surface antigens, behaves like a recessive trait, which only manifests itself in the absence of surface antigens A and B. The genotype is O/O.By making a hypothetical crossing between mother and man, one can observe why he can be exonerated.
Man with blood type O
♂ O|O
♀ O|O
Alleles O O
O O|O O|O
O O|O O|O
The only possibility, in this case, is to have children with type O blood. No chance of children B.
Male with blood type A
♂ A|O
♀ O|O
Alleles A O
O A|O O|O
O A|O O|O
In this case there is a 50% chance that the children will be blood type A and 50% chance that they will be O. No chance of children B.
In the case of a man A|A the result is 100% probability of children A|O, and no probability of children B.
So, a man with blood types A (any genotype) and O, can be exonerated from paternity, since it is impossible for him to have a child of blood type B, when the mother is of blood type O.
Which of the following is not a function of the circulatory system? *
1 point
To pump blood throughout the body
to transport waste away from cells
to use chemical signals to send messages
To transport oxygen to the rest of the body
Answers
Answer:
To use chemical signals to send messages
Explanation:
Sending messages with the use of chemical signals is not a function of the circulatory system.
Instead, it is a function of the endocrine system, which uses chemical messages called "hormones."
The other 3 choices are functions of the circulatory system. This system pumps blood throughout the body, removes waste products, and also carries oxygen throughout the body.
The circulatory system performs several important functions in the body. However, out of the options provided, the function that is not associated with the circulatory system is "to use chemical signals to send messages."
Breakdown of the functions of the circulatory system:
1. To pump blood throughout the body: The heart, which is a key component of the circulatory system, pumps oxygenated blood from the lungs to the rest of the body and returns deoxygenated blood back to the lungs for oxygenation. This continuous circulation of blood ensures that all cells in the body receive the necessary oxygen and nutrients.
2. To transport waste away from cells: The circulatory system also plays a vital role in removing waste products generated by cells. Carbon dioxide, which is a waste product of cellular respiration, is transported by the circulatory system to the lungs for elimination through exhalation. Other waste products are carried by the circulatory system to the appropriate organs for processing and elimination, such as the kidneys for urine formation.
3. To transport oxygen to the rest of the body: Another crucial function of the circulatory system is to deliver oxygen to the body's tissues. Oxygen is necessary for cellular respiration, the process by which cells convert glucose into energy. The circulatory system transports oxygen-rich blood from the lungs to the body's cells, allowing them to carry out their metabolic functions.
In summary, the circulatory system does not use chemical signals to send messages. Instead, it primarily functions to pump blood throughout the body, transport waste away from cells, and transport oxygen to the rest of the body.
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upon identifying an antigen in the bloodstream, b cells launch a chemical attack by producing antigens specific to the antibody. this is an example of
Answers
When a B cell detects a antigen inside the bloodstream, it produces antigens that are unique to the antibody and begins a chemical attack.
Humoral immunity is the response to an invading substance's chemical onslaught. IgG or IgM antibodies in the blood attach to antigen to create large, insoluble immune complexes, which are the cause of type III hypersensitivity. These complexes get stuck in the body's small channels, causing inflammatory reactions that harm the tissues beneath. The immune system's primary sources of histamine are mast cells and basophils. Along with other amines (such as serotonin), proteases, proteoglycans, chemokines, or angiogenic factors, histamine was stored in cytoplasmic granules and is quickly released in response to a range of stimuli. Antibody production is carried out by B-lymphocytes. The deliberate dispersal of dangerous chemicals is referred to as a chemical attack. Many other compounds could be produced, stolen, or otherwise obtained.
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how is the phloem is adapted to its function
Answers
Answer:
The cells that make up the phloem are adapted to their function: Sieve tubes - specialised for transport and have no nuclei
Explanation:
I hope this is right
Humans use many chemical substances for farming that consequently affect biodiversity. These compounds, which are rich in nitrogen and phosphorus, are used to fertilize crops. Excessive use of these compounds causes
Answers
Answer:
algal growth due to eutrophication
Explaination:
Eutrophication is where these nutrient rich compounds mix with nearby water sources and promote the growth of large amounts of algae. Algae go through respiration and take up the dissolved O2 in water which causes these areas to experience low O2 levels. Everything needs O2 to survive thus nearby organisms and plants die out creating dead zones.
Answer:
Eutrophication and Algal growth
Explanation:
I just got it right.
macromolecules are converted into cell structures via catabolism T/F?
Answers
False. Macromolecules are typically broken down through catabolism into smaller molecules such as monomers or simpler organic compounds that can then be used for energy or biosynthesis.
Catabolism is the process of breaking down larger molecules into smaller ones, typically resulting in the release of energy. The breakdown of macromolecules such as carbohydrates, proteins, and lipids via catabolism ultimately leads to the formation of ATP, the main energy currency in cells. However, these smaller molecules are not typically used directly to form cell structures. Instead, they may be used as building blocks for the synthesis of new macromolecules or for the production of cellular components such as enzymes, membranes, and organelles. Thus, while macromolecules are important components of cell structures, they are not directly converted into these structures through catabolism.
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total solar
eclipse where
only the corona
is visible is called?
Answers
Answer:
Solar Corona
Explanation:
Which of the following is not a transboundary health hazard along the u.s.-mexico border? a. abandoned tires b. raw sewage c. animal carcasses d. hazardous waste
Answers
Answer:
A) abandoned tires
Explanation:
Abandonded Tires are not a transboundary health hazard. Exposure to the vapors emitted by raw sewage can lead to gastroenteritis and E.Coli. Dead animal carcasses can carry several diseases that are detrimental or even deadly for humans. Hazardous substances may irritate the skin or eyes, make it difficult to breathe, and even cause cancer.
Answer:
a
Explanation:
ed
High steps should be marked with reflector tape and should include slip ________.
Answers
High steps should be marked with reflector tape and should include slip-resistant surfaces to prevent accidents and falls.
When working in environments with high steps, it is important to take precautions to ensure safety. Reflective tape can be applied to the edges of high steps to make them more visible in low light conditions. Slip-resistant surfaces can be added to the tops of steps to provide better traction and reduce the risk of slips and falls.
This is especially important in environments where water or other slippery substances may be present, such as in industrial or outdoor settings.
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Why is distilled water beneficial to
plants?
A. The water moves into the cells easily.
B. Distilled water will kill plants.
C. The water moves out of the cells easily.
Answers
A
The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant that has green pods. Yellow pods are the dominant trait. The flowchart is missing the labels that describe the traits. A flow chart is shown. A and B both go to C. C goes to both D and E. In which squares should the phrase “Yellow pods” appear? A and D B and E A, C, and D A, B, C, D, and E
Answers
Answer:
its E
explanation : its just a hunch
I need help! I need help studying for this test retake. It's on Organic compounds, do you have notes, study sets/tools, websites, videos, anything will help. 2. Does anyone have advice on test anxiety?
Thanks for your Help!!!! Really appreciated!!!
Answers
This one is the one i learnt from grade 9,
I lost my personal notes, but try read this one
Organic Compounds has 4 classes
[Carbohydrates, nucleic acid, lipids , proteins)
The notes in the picture explains carbohydrates, proteins, and enzyme
What is a sentence with the word evolution
Answers
Answer:
Charles Darwin wrote the theory of evolution.
Answer:
The field if evolution has now been transferred to the Northern hemisphere
Explanation:
try looking online. Look up the word of the definition and go from there :)
Sheryl is observing ovarian slides taken from a female ape. All the cells show crossover chromosomes. What is this stage?
ОА
meiotic prophasel
ОВ.
meiotic prophase II
Ос.
meiotic metaphase
Answers
Answer:
meiotic prophasel
Explanation:
Crossing-over is a unique phenomenon that only occurs during meiotic division or gamete formation. It is the process whereby non-sister chromatids of homologous chromosomes exchange a portion of the their chromosome.
Crossing-over occurs specifically in the Prophase 1 stage of meiosis, where homologous chromosomes lie side by side to form a TETRAD structure and exchange their chromosomal segment. Crossing-over aims at promoting genetic diversity among sexually-reproducing organisms.
Therefore, an ovarian slide observed to show crossing-over occurs at the Prophase I stage of meiosis 1.
Complete the following sentence.
Sod is harvested and then shipped in the form of
often to local customers.
Answers
Answer:
Rolls
Explanation:
I took the test.
