Examine a two-gene cross that follows simple Mendelian inheritance of freckles and eyebrow shape between a woman with genotype Mmpp and a man with genotype mmpp. How many phenotypes are possible in their offspring and in what ratio?
a. 4 phenotypes: 9:3:3:1
b. 2 phenotypes; 1:1
c. 3 phenotypes; 8:4:4
d. 3 phenotypes; 1:2:1
Answers
The number of possible phenotypes in the Mendelian cross would be 2 in the ratio 1:1.
Phenotypic ratiosFirst, let us look at the result of crossing the two genotypes Mmpp and mmpp.
Mmpp will give the gametes Mp, Mp, mp, and mp
mmpp will give the gametes mp, mp, mp, and mp
The two sets of gametes can thus be lined up on both axes of the Punnet's square as shown in the attached image.
Genotypes of the offspring: 8 Mmpp and 8 mmpp
Since the two genes follow a simple Mendelian inheritance pattern, the 2 genotypes automatically equate to 2 phenotypes in the ratio 1:1.
Hence, the correct option is b.
More on phenotypic ratios can be found here: https://brainly.com/question/3840678
Related Questions
Which type of air is largest as it expands?
A. Cold Air
B. Dry Air
C. Frigid Air
D. Warm Air
Answers
Answer:
Warm air (greater capacity than cold), dry air (greater deposition takes place to form frost. Haunted house decreases. The fog that forms along the Pacific coastline of North America is a or an temperature within a gas as the gas expands
Brainly for the first one to answer! Answer in a short paragraph please !
What do you think of the world's hugely increasing energy needs?
Answers
Answer:
I like it, it is good
Explanation:
I like it
please help! 15 pointss!!
3.Looking at the heat circulation in the ocean, what might happen to it if large amounts of cold water are added in the Polar Regions as glaciers melt?
4.Based on your response above, what effect could this have on the climate in your area?
Answers
Answer:
1. In the given question, if large amounts of water are supplemented in the Polar Regions as glaciers melt then the warm water will exhibit a more difficult time in flowing towards north.
2. The effect it could impart in the area is that the local temperature would increase more.
Which of the following is the primary advantage of sexual reproduction when compared to asexual reproduction?
A There is greater genetic variety in the offspring
B There is a longer development time for the offspring
C There is more food available to the offspring
D There is a greater number of offspring
Answers
Explanation:
(1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1÷1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1 )
.. Studies conducted in England during the Industrial Revolution have shown that children
born to poor families were, on average, shorter than those born to wealthier parents. The
most likely explanation for this difference in height is a difference in
O nutrition.
O family size.
O genetic makeup.
O genetic disorders.
Answers
Answer:
genetic make up
Explanation:
this is because the genotype of two parents maybe one was tall the other was for,, environmental factors cannot affect the genotype of an organism,,phenotype can not affect the genotype
Answer:
The answer is 'Genetic Makeup'.
Explanation:
It's pretty simple.
What is not a type of mutation?
Deletion
Inversion
Migration
Translocation
Answers
Answer: The answer is Migration... Hope this helps... Stay safe and have a great day... :D
Explanation:
How do enzymes relate to photosynthesis and cellular respiration?
Answers
Answer:
Enzymes are proteins that act as catalysts for reactions, such as those in cellular respiration. They increase the likelihood of a reaction by lowering the energy required for a reaction to occur. In the process, enzymes are left unchanged by the reaction. ... The resulting molecules from the reaction are called products.
Explanation:
What is a protein in red blood cells that binds with oxygen and carries it around the body?
Answers
Answer:
Hemoglobin
Explanation:
Which of the following is NOT true about soil sampling?
O It helps prevent over-usage of fertilizers
O It is expensive and not an accurate indicator of soil pH
o It can indicate the amount of available nutrients in soil
It can determine the most current fertility status of a soil
Answers
Answer:
It is expensive and not an accurate indicator of soil pH
Explanation:
Soil sample is one of the ways of studying a particular soil in order to know some certain things about it.
A sample of soil is collected for experimental processes to characterize some of its properties and how useful a soil is for an agricultural undertaking. It is not true that soil sampling is expensive and not an accurate indicator of soil pH.Can anyone solve this?
Answers
Not autosomal because both sexes have them
Hope this helped
Which level of taxonomy divides its organisms based on DNA sequences
instead of structural similarities? *
A Domain
B Kingdom
C Genus
O D Species
Answers
Answer:
D Species
Explanation:
Living organisms have been organized into groups using the Kingdom to Species classification. Kingdom level represents the least specific while Species level represents the most specific. Prior to the discovery of DNA, classification of organisms has been based on structural similarities i.e. organisms that look similar are classified into the same species.
However, the discovery of DNA, put a stop to the erroneous classification of organisms based on structural similarities as there were many exceptions to this. Since members of the same species have a nearly identical DNA, it is used to divide its organisms based on DNA sequences
instead of structural similarities.
Which is a disaccharide?
1. glucose 2. fructose 3. sucrose 4. cellulose
Answers
Answer:
surcrose
Explanation:
I googled it
Answer:
3. sucrose
Explanation:
pls help !!!!!!!!!!!!!
Answers
I have attached my resume for your reference and
PLZ HELP 46 POINTS WHOEVER ANSWERS GETS BRAINEST !!! What happens before mitosis occurs?
A.The cell grows and makes a copy of its genetic material.
B.Cytoplasm from the parent cell becomes two daughter cells.
C.The cell takes a rest.
D.The genetic material of the parent cell multiplies into four sets
Answers
Answer:
A. The cell grows and makes a copy of its genetic materialExplanation:
Before Mitosis, is a stage in the cell cycle called the 'Interphase'. During Interphase, the cell grows and makes a copy of its genetic material. During the G1 phase, the cell grows. During S phase, the cell's DNA replicates itself. And during G2, the cell grows and prepares for cell division (mitosis)
explain what means homeostatis
Answers
Homeostasis is the potential to maintain a quite secure interior country that persists no matter adjustments in the world outside. All residing organisms, from vegetation to doggies to people, ought to adjust their internal surroundings to technique energy and sooner or later survive.
Answer:
Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside.
Question 11 (4 points)
Nucleotides are the units found in nucleic acids and are composed of a phosphate, a sugar, and a nucleotide base. Look at the picture below.
The following are the nucleotide bases found in the nucleotides that make up DNA in living things. Their names are show as the following
I’ll give BRAINLIEST
letters. A, T, G, C. How would the DNA of a human compare to the DNA of a duck?
Answers
Answer:
Everything uses the same nucleotides as the building blocks of it's DNA for instance we have the same letters used in our genetic code as duck do, but they're arranged in different orders or "sequences" therefore making it completely different. The same concept applies when comparing two humans DNA as well.
Explanation:
Hope this helped
Electron micrographs following freeze fracture of the plasma membrane indicate that
Answers
Answer:
Electron micrographs following freeze-fracture of the plasma membrane indicate that: the membrane is a phospholipid bilayer.
What is smaller a red blood cell or a virus?
Answers
Answer:
A virus
Explanation:
Answer:
Virus
Explanation:
Virus is smaller
Which shows the correct order of processes for fungi to reproduce sexually?
A genetically unique fungus is produced, a spore forms, and hyphae exchange genetic material.
A spore forms, a genetically unique fungus is produced, and hyphae exchange genetic material.
Hyphae exchange genetic material, a spore forms, and a genetically unique fungus is produced.
A spore forms, hyphae exchange genetic material, and a genetically unique fungus is produced.
Answers
Answer:
A
Explanation:
sorry im really bad at explaining things TwT its just the order i believe, i had to do a project on this a while back, and i forgot if i got this right, sooo i hope its right
Answer:
C
My teacher posted a Quizziz and it said C
Explanation:
Help need now!
(1) Define homeostasis.
(2) What are the two ways a substance can move through a cell’s membrane?
(3) What is passive transport? Will particles move to an area of higher or lower concentration?
(4) How do large molecules move across the cell membrane through facilitated diffusion?
(5) Describe what happens during osmosis.
(6) What are aquaporins?
(7) What is active transport?
(8) Why is energy needed for active transport? Will particles move to an area of higher or lower concentration?
(9) Describe endocytosis.
(10) Describe exocytosis.
Answers
Answer: 1Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside. All living organisms, from plants to puppies to people, must regulate their internal environment to process energy and ultimately survive. 2Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane. 3In passive transport, substances simply move from an area of higher concentration to an area of lower concentration, which does not require the input of energy. Concentration gradient, size of the particles that are diffusing, and temperature of the system affect the rate of diffusion. 4In facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers. A concentration gradient exists for these molecules, so they have the potential to diffuse into (or out of) the cell by moving down it.5: Osmosis: In osmosis, water always moves from an area of higher water concentration to one of lower concentration. ... Water has a concentration gradient in this system. Thus, water will diffuse down its concentration gradient, crossing the membrane to the side where it is less concentrated. 6Aquaporins, also called water channels, are channel proteins from a larger family of major intrinsic proteins that form pores in the membrane of biological cells, mainly facilitating transport of water between cells. 7In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.8During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.9Endocytosis definition and purposes. Endocytosis is the process by which cells take in substances from outside of the cell by engulfing them in a vesicle. ... Endocytosis occurs when a portion of the cell membrane folds in on itself, encircling extracellular fluid and various molecules or microorganisms.10Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell, as shown in Figure below. Exocytosis occurs when a cell produces substances for export, such as a protein, or when the cell is getting rid of a waste product or a toxin
Explanation:
what would happen if homogenisation and pasteurisation steps are omitted during the production of yoghurt
Answers
Answer:
The correct answer would be - there could be microorganisms like bacteria present and consistency or texture would be not as expected.
Explanation:
Pasteurization is more of a safety process that helps in the elimination of microorganisms like bacteria and this process involves heating the liquid and cooling it down immediately to a very low temperature.
Homgenisation is the process that makes liquid particles evenly small and distributed equally which gives it consistency or texture and taste. Without these two processes, yogurt will have bacteria and inconsistency.
A frog has more offspring than can survive on available resources.
Which behavior is this an example?
competition
overpopulation
variation in a population
artificial selection
Answers
Answer:
B overpopulation
Explanation:
This behavior is this an example of overpopulation.
Overpopulation exacerbates many social and environmental factors, including overcrowded living conditions, pollution, malnutrition and inadequate or non-existent health care.What are the consequences of overpopulation?Depletion of Natural Resources. Degradation of Environment. Conflicts and Wars.Rise in Unemployment.High Cost of Living.What is overpopulation?Overpopulation refers to the exceeding of certain threshold limits of population density when environmental resources fail to meet the requirements of individual organisms regarding shelter, nutrition and so forth. It gives rise to high rates of mortality and morbidity.
To know more about population here
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How do naturally occurring hormones affect plants? They ripen fruits, prevent plants from being eaten by insects, and help plants collect water from soil. They start lateral leaf growth, help plants collect water from soil, and speed up the growth of plant cells. They keep buds inactive in winter, speed up the growth of plant cells, and ripen fruits. They speed up the growth of plant cells, ripen fruits, and prevent plants from being eaten by insects.
Answers
Answer:
c
Explanation:
Naturally occurring hormones affect plants as they speed up the growth of plant cells, ripen fruits, and prevent plants from being eaten by insects, which is the last option.
What is a plant hormone?Naturally occurring hormones in plants, also known as plant growth regulators, play a crucial role in regulating various physiological processes in plants. There are five main types of plant hormones: auxins, gibberellins, cytokinins, abscisic acid, and ethylene. Each of these hormones affects plant growth and development in different ways. Auxins, for example, are primarily responsible for cell elongation and the promotion of lateral growth in shoots. They also play a role in root growth and phototropism, which is the movement of plants towards or away from light sources.
Hence, naturally occurring hormones affect plants as they speed up the growth of plant cells, ripen fruits, and prevent plants from being eaten by insects, which is the last option.
Learn more about the plant hormone here.
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In a monohybrid cross, if the gene for tall (T) plants was incompletely dominant over the gene for short (t) plants, what would be the predicted result of crossing an intermediate (Tt) plant with a tall (TT) plant? (Hint: You may want to complete a Punnett square.) 50 percent tall, 25 percent intermediate, 25 percent short 25 percent tall, 50 percent intermediate, 25 percent short 50 percent tall, 50 percent intermediate 100 percent intermediate
Answers
Answer:
It would be 50/50
Explanation:
If you do appointment square with TT and Tt you would have two sets of TT and two sets of Tt
using the scientific method, a(n)_ must be tested as the focus of any experiment
Answers
A large __________ __________ can increase the effectiveness of exchange surfaces in plants and animals. What two words complete the sentence?
Answers
Answer:
Surface area
The effectiveness of exchange surfaces in plants and animals is increased by having: A large surface area. Have a nice day!
A topographic map would best provide information about which area? state boundaries interstate highways routes of minor roads areas with mountains
Answers
Answer:
im pretty sure its c if im wrong then its d
Explanation:
i hope this helps :)
Answer:
D. Areas with mountains :)
I am arranged as a double helix, and my shape is often described as a “twisted ladder”
DNA ONLY
RNA ONLY
BOTH DNA AND RNA
Answers
Answer:
hi you wasted one of the answers i had for my question so im returning the favor :)
Explanation:
What is the phenotypic ratio that you would expect to find in the
offspring that result from a cross of 2 heterozygotic individuals. Assume
that one allele is dominant and the other is recessive. (phenotypic ratio
is the ratio that you expect between the different offsprings' phenotypes
- I would not give this definition on the exam)
Answer:
Answers
Answer:
The seven characteristics that Mendel evaluated in his pea plants were each expressed as one of two versions, or traits. Mendel deduced from his results that each individual had two discrete copies of the characteristic that are passed individually to offspring. We now call those two copies genes, which are carried on chromosomes. The reason we have two copies of each gene is that we inherit one from each parent. In fact, it is the chromosomes we inherit and the two copies of each gene are located on paired chromosomes. Recall that in meiosis these chromosomes are separated out into haploid gametes. This separation, or segregation, of the homologous chromosomes means also that only one of the copies of the gene gets moved into a gamete. The offspring are formed when that gamete unites with one from another parent and the two copies of each gene (and chromosome) are restored.
Hope this is helpful for u
Why do we need classification