WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 9, Problem 10MC
Summary Introduction
Introduction:
Many genes occur on the same chromosome.
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Students have asked these similar questions
Human hair color ranges from black to many shades of brown to blonde. What can you correctly conclude from this information?
A Human hair color is controlled by a single gene.
B Human hair color is controlled by environmental factors rather than genes.
C Human hair color is controlled by more than one gene.
D Black hair is dominant to blonde hair.
Answer is C? Can you help me to explain to me step by step?
Humans can have three different blood types: A, referring to showing the A antigen on the surface of the red blood cells, B, referring to showing the B antigen on the surface of the red blood cells, and O, have no antigens on the surface of the red blood cells. The situation in which we have three different alleles for the same gene (protein antigen expressed on blood cell) is an example of:
Select one:
a. sex-linked traits
b. multiple alleles
c. incomplete dominance
d. pleiotrophy
Which of the following statements correctly describes a Y-linked trait?
A. It will always be expressed if present in female individuals
B. It can be inherited by a daughter for her father
C. It can be inherited by a son from his mother
D. It will always be expressed if present in male individuals
Chapter 9 Solutions
WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The chart below is showing 4 generations of a family that is affected by a hereditary disease. a. Is the disorder being tracked dominant or recessive? How do you know? b. There is only one possible genotype for person C. True or False? c. What are the possible genotypes for person A? d. What are the possible genotypes for person B?, e. If two people with the same genotypes as person C's spouse and person A's spouse had a child, what is the probability that the child will be affected by this genetic disorder? (draw a Punnett square using the correct genotypes to help you). % chance offspring will be affected % chance offspring will not be affectedarrow_forwardIn humans, a dimple in the chin is a dominant characteristic controlled by a single gene.a. A man who does not have a chin dimple haschildren with a woman with a chin dimple whose mother lacked the dimple. What proportion of theirchildren would be expected to have a chin dimple?b. A man with a chin dimple and a woman who lacksthe dimple produce a child who lacks a dimple.What is the man’s genotype?c. A man with a chin dimple and a nondimpledwoman produce eight children, all having the chindimple. Can you be certain of the man’s genotype?Why or why not? What genotype is more likely,and why?arrow_forwardIn humans, a dimple in the chin is a dominant characteristic controlled by a single gene. A man who does not have a chin dimple has children with a woman with a chin dimple whose mother lacked the dimple. What proportion of their children would be expected to have a chin dimple? A man with a chin dimple and a woman who lacks the dimple produce a child who lacks a dimple. What is the man’s genotype? A man with a chin dimple and a non-dimpled woman produce eight children, all having the chin dimple. Can you be certain of the man’s genotype? Why or why not? What genotype is more likely, and why?arrow_forward
- Some heterozygotes express a phenotype that is intermediate between the dominant and recessive phenotype. For example, in 4 o’clock flowers the gene for red pigmentation is dominant and the gene for white pigmentation is recessive. However, heterozygotes are pink. The dominant allele does not completely mask expression of the recessive allele: it is incompletely dominant. a. By observing flower color in 4 o’clock flowers, is it possible to unambiguously determine the genotype? YES/NO. Explain your answer. b. Is the same true for flower color in snow peas? YES/NO Why or why not?arrow_forwardIn humans, there are three alleles for blood type: A, B, and O. A and B are codominant over O. A male with type AB blood and a female with type A blood have a child. The male’s parents both had type AB blood. The female’s mother had type A blood and her father had type B blood. What is the potential phenotype of the child? A. type A (25%), type B (25%), type AB (25%), type O (25%) B. type A (25%), type B (50%), type AB (25%) C. type A (25%), type B (25%), type AB (50%) D. type A (50%), type B (25%), type AB (25%)arrow_forwardYou discover a new species of butterfly with wing colors ranging from red to blue and everything in between. You want to understand the factors that determine wing coloration. You rear butterflies on two different diets and create the plot below. Which of the following can you likely conclude from this data (check all that apply): Diet 1 Diet 2 blue red Color O Color in this species is a polygenic trait O Color in this species is a result of epistasis O Color in this species is pleiotropic Color in this species is not heritable O Color in this species is affected by the environment Frequency 10 20 30 40 50arrow_forward
- Many inheritance patterns in traits, especially continuous ones, cannot be accounted for by Mendelian genetics. Why might this be? Select all that apply. A. The trait might not be controlled by any genes. B. The trait might have multiple genes that control it. C. There might not be any alleles that result in the trait. D. There might be more than two alleles that result in the trait. E. Two alleles might be codominant for the trait. F. The trait might not have any codominant alleles.arrow_forwardA person’s blood type is the result of expression of a gene with three alleles. However, only 2 alleles are expressed in any cell. This gene determines what type of sugar molecule gets added to the red blood cell membrane. The alleles for this gene are codominant. Together, this means that: a. only one allele is expressed and the other two are not expressed b. two alleles are expressed, and both are dominant c. if you took 10 single red blood cells from 1 person and looked at them, 1/3 would show 1 type of sugar molecule, 1/3 would have the 2nd sugar molecule, and 1/3 would have no sugar molecules on the surface d. All of the above are truearrow_forwardChoose a trait from the list above and describe if you are dominant or recessive for that trait. Do the same for your parents, alternatively, if you have children you can do this with your and your partner's traits and your child(ren), or you can choose a set of parents and children that you know as examples for this exercise. In your response be sure to list how both parents and their child(ren) are expressing the trait, what the potential GENOTYPES are for each individual. What are the possibilities for the parental pair based on their possible genotypes (hint: Punnet Square).arrow_forward
- Consider the following human traits: Eye color: brown (B) is dominant over blue (b)Fingers: polydactylous (P) or extra fingers is dominant over normal (p) fingersHairline: widows peak (W) is dominant of normal (w) hairline A man with the genotype BBPpWW marries a woman with the genotype bbPpWw.What is the probability that they will have a: a. Baby boy? b. Child with blue eyes? c. Child with normal fingers? d. Child with widow’s peak?e. Baby girl with blue eyes? f. Baby boy with normal fingers?g. brown-eyed, polydactylous child?arrow_forwardParents often want to know what is genetically possible for their children. If two parents are carriers for a recessive lethal trait, what are the odds that their child is also a carrier? Many times there is interest in tracking multiple traits at once (not just 1 or 2). The same probability rules apply here, you just multiple all the odds together at once. Imagine two parents. They are both carriers for red hair, one person is blood type AB, the other is type O. They want to know the odds of a daughter with red hair and type B blood. Please do no not do a giant Punnett square! Use probability or individual squares. a. What are the genotypes of the parents? b. What are the odds of each trait (daughter, red hair, type B)arrow_forwardWhy are sex-linked traits more common in males than in females? Select one: a. All alleles on the Y chromosome are recessive O b. Genes on the Y chromosome activate recessive genes on the X chromosome O c. Females never express recessive alleles on the X chromosome O d. A recessive allele on the X chromosome will always produce the trait in a male O e. All alleles on the X chromosome are dominant z/attempt.php?attempt=1173673&cmid=3837312&page=6#arrow_forward
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