Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 19, Problem 8CT
A man is homozygous dominant for ten different genes that assort independently. How many genotypically different types of sperm could he produce? A woman is homozygous recessive for eight of these genes and is heterozygous for the other two. How many genotypically different types of eggs could she produce? What can you conclude about the relationship between the number of different gametes possible and the number of heterozygous and homozygous gene pairs that are present?
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In fruit flies, the allele for normal wings (V) is dominant to the allele for short wings (v). Suppose two fruit flies heterozygous for the trait are mated.
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Chapter 19 Solutions
Human Biology (MindTap Course List)
Ch. 19 - Define the difference between (a) gene and allele,...Ch. 19 - Prob. 2RQCh. 19 - What is probability, and how is it applied in...Ch. 19 - What is independent assortment? Does independent...Ch. 19 - Alleles are ___________. a. alternate forms of a...Ch. 19 - A heterozygote has _____. a. only one of the...Ch. 19 - Prob. 3SQCh. 19 - Offspring of a cross AA aa are ______. a. all AA...Ch. 19 - Prob. 5SQCh. 19 - Prob. 6SQ
Ch. 19 - Which statement best fits the principle of...Ch. 19 - Prob. 8SQCh. 19 - Prob. 9SQCh. 19 - Prob. 10SQCh. 19 - One gene has alleles A and a. Another has alleles...Ch. 19 - Still referring to Problem 1, what will be the...Ch. 19 - Go back to Problem 1, and assume you now study a...Ch. 19 - The young woman shown at right has albinismvery...Ch. 19 - When you decide to breed your Labrador retriever...Ch. 19 - The ABO blood system has been used to settle cases...Ch. 19 - Prob. 7CTCh. 19 - A man is homozygous dominant for ten different...Ch. 19 - Prob. 9CTCh. 19 - Bill and Marie each have flat feet, long...Ch. 19 - You decide to breed a pair of guinea pigs, one...
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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
- 1. If one parent is Tt, what alleles can they pass on to an offspring? (we're talking about a parent producing a gamete, right?) 2. If one parent is TT and the other parent is Tt, what are the possible offspring (These are zygotes, right?) --This is where it gets confusing so make sure to read over Larsen's explanation, and my explanation in the lecture video. The first two questions were super simple, but they were designed to orient your thinking for a dihybrid cross 3. If one parent is TtRr, what alleles can they pass on to an offspring? (what do their gametes look like in terms of letters?) 4. Same as #3, but with different letters. If one parent is TTrr, what alleles can the pass on to an offspring?arrow_forwardThe probability that both alleles in the offspring are type A is the product of the probability that the allele from the pollen is A and the probability that the allele from the ovule is A (we will derive this in Section 6.5). What is the probability that the offspring of a homozygous parent is homozygous? What is the probability that the offspring of a homozygous parent is heterozygous?arrow_forwardHuman females have two X chromosomes (XX); males have one X and one Y chromosome (XY). a. With respect to X-linked alleles, how many different types of gametes can a male produce? b. If a female is homozygous for an X-linked allele, how many types of gametes can she produce with respect to that allele? c. If a female is heterozygous for an X-linked allele, how many types of gametes can she produce with respect to that allele?arrow_forward
- Human females have two X chromosomes XX; males have one X and one Y chromosome XY. a. With respect to X-linked alleles, how many different types of gametes can a male produce? b. A female homozygous for an X-linked allele can produce how many types of gametes with respect to that allele? c. A female heterozygous for an X-linked allele can produce how many types of gametes with respect to that allele?arrow_forwardHuman sex chromosomes are XX for females and XY for males. a. With respect to an X-linked gene, how many different types of gametes can a male produce? b. If a female is homozygous for an X-linked allele, how many different types of gametes can she produce with respect to this allele? c. If a female is heterozygous for an X-linked allele, how many different types of gametes can she produce with respect to this allele?arrow_forwardIf you fertilize an adult female which is mosaic gonads (y w sn3 and mhw e gametes) with an adult male with (y w sn3 gametes) what are the genotype of parents? If thay produced 10-20% wild phenotype and 80-90% y w sn3 phenotype. And explain itarrow_forward
- Which of the following would not be an example of a quantitative trait? O All of these are quantitative O Polydactyly in chimps O Birth body length of dalmatians O Weight of humpback whales O Blood pressure in black bearsarrow_forwardWhat type of gametes can be produced by simple non-disjunction of the sex chromosomes in a human male? Simple non-disjunction means that non-disjunction occurs in meiosis I or meiosis II, but not in both meiosis I and meiosis II. Choose all answers that are correct Group of answer choices 22, 0 24, YY 25, XXY 23, XX 23, XY 25, XXX 24, XY 24, XXarrow_forwardSuppose the mating had occurred between homozygous recessive male for a disease and a normal female known to be heterozygous. What would the probabilities be for the following outcomes? 3 offspring in the following order: normal, with disease, normal Use the factorial equation n!/x!(n-y)! * (p)x (q)n-x n = number of events (offspring) x = number of normal / dominant offspring n-y =total - number of abnormal / recessive offspring p = probability of producing a normal/dom q = probability of producing an abnormal/recarrow_forward
- A woman who is homozygous for normal color vision mates with a colorblind male. they produce a female child how has only one X chromosome and who is also color blind. In which parent did the nondisjuction take place? Can you specify which meiotic division?arrow_forwardStephanie conducts an experiment to study sex reversal in a specific grographic location. She collects cells from newborn babies and examines them under a microscope over seven years. Among 6,100 newborn males, three have one Barr body, and all other babies have no Barr body. Among 6,300 newborn females, four have two Barr bodies and the rest have one. What of the following statements is not true? 1. About 0.5 % of boys have an additional X chromosome, so they have forty-seven chromosomes. 2. Barr body is a small and dense structure of inactivated X chromosome. 3. Nondisjunction could produce an altered number of sex chromosomes. 4. Having an unusual number of Barr bodies indicates that the organism has more than two X chromosomes.arrow_forwardA cell has four pairs of chromosomes. Assuming that crossing over does not occur, what is the probability that a gamete will contain all of the paternal chromosomes? If n equals the number of chromosomes in a set, which of the following expressions can be used to calculate the probability that a gamete will receive all of the paternal chromosomes: (1/2)n, (1/2)n–1, or n1/2?arrow_forward
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