Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 41, Problem 1DAA
Summary Introduction
To explain: After four minutes, the number of sperms from men with a wild-type allele that was in the camera’s view on average.
Concept introduction: The epididymis is a part of the male reproductive system. Through the epididymis, the sperms travel from the testis to the vas deferens.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Which findings support the fact that the presence of the Y-
chromosome rather than the lack of a second X-chromosome
determines the development of maleness in mammals?
A transgenic mouse with two X-chromosomes and the SRY gene from
the Y-chromosome develops male sex organs.
A human with an XXXY genotype (Klinefelter syndrome) is
phenotypically male.
A human with an XO genotype (Turner syndrome) is phenotypically
female.
a and b, but not c
a, b, and c
Humans have two different sex chromosomes, X and Y.
Figure 4 below shows the inheritance of sex in humans.
Figure 4
Mother
Father
XX
XX
Y
XY XY
a)
Copy the diagram into your answer booklet and draw a circle on the part
of Figure 4 that shows an egg cell.
b)
What is the genotype of the male offspring?
c)
A man and a woman have two sons. The woman is pregnant with a
third child. What is the chance that this child will also be a boy?
I would appreciate some help with this pedigree chart questions
Chapter 41 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 41 - Sexual reproduction ___ . a. requires formation of...Ch. 41 - The ___ is a genetic dead end. a. polar body b....Ch. 41 - Prob. 3SQCh. 41 - Prob. 4SQCh. 41 - Prob. 5SQCh. 41 - Prob. 6SQCh. 41 - Male germ cells divide by meiosis inside the...Ch. 41 - Prob. 1DAACh. 41 - Prob. 2DAACh. 41 - Prob. 3DAA
Ch. 41 - Prob. 4DAACh. 41 - A male attains an erection when ___ . a. muscles...Ch. 41 - Prob. 9SQCh. 41 - Prob. 10SQCh. 41 - Prob. 11SQCh. 41 - Match each disease with the type of organism that...Ch. 41 - Prob. 13SQCh. 41 - Match each hormone with its source. ____ FSH and...Ch. 41 - Prob. 1CTCh. 41 - Fraternal twins are nonidentical siblings that...Ch. 41 - Some sperm mitochondria enter an egg during...
Knowledge Booster
Learn more about
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
- Earlobes can be attached to the face or non-attached. An attached earlobe is a recessive trait. A female with attached earlobes (Il) has a child with a man with non-attached earlobes. He is heterozygous for this trait. Questions: a. What are the possible genotypes of the egg the woman can produce? b. What are the possible genotypes of the sperm the man can produce? c. What is the genotype ratio for the offspring? d. What is the phenotype ratio for the offspring? e. What is the couple's chance of having a child with attached earlobes?arrow_forwardThe genotype of a dwarf mouse is Igf2 Igf2–. What is the genotype of its father who has normal body size? Indicate which allele is on the maternal chromosome and which allele is on the paternal chromosome for both dwarf mouse and its father.arrow_forwardTo determine whether radiation associated with the atomic bombings of Hiroshima and Nagasaki produced recessive germ-line mutations, scientists examined the sex ratio of the children of the survivors of the blasts. Can you explain why an increase in germ-line mutations might be expected to alter the sex ratio?arrow_forward
- If the mutation occurred in Jonathan's somatic cells when he was in his 30's, what type of alleles will be found in his sperm? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. b [+ 50% will contain the mutant Huntington allele, 50% will contain the wildtype allele. 25% will contain the mutant Huntington allele, 75% will contain the wildtype allele. Since Huntington's Disease is a dominant disorder, all of his sperm will contain mutant Huntingtin alleles. The condition will not appear in his gametes since he did not inherit it, but it arose as a new mutation in his body cells.arrow_forwardThe dosage of X chromosome expression is equalized between male and female mammals. Think about the example of calico cats to answer the following questions. Use Xb to represent the allele for black fur, XB to represent the allele for orange fur. What genotype(s) of female cats is/are expected to have a calico coat? Is it possible to have a calico cat that is male? Explain.arrow_forwardDuchenne muscular dystrophy is sex linked and usually affects only males. Victims of the disease become progressively weaker, starting early in life.a. What is the probability that a woman whose brother has Duchenne’s disease will have an affected child?b. If your mother’s brother (your uncle) had Duchenne’s disease, what is the probability that you have received the allele?c. If your father’s brother had the disease, what is the probability that you have received the allele?arrow_forward
- The Amami spiny rat (Tokudaia osimensis) lacks a Y chromosome, yet scientists at Hokkaido University in Japan have reported that key sex-determining genes continue to be expressed in this species. Provide possible explanations for why male differentiation can still occur in this mammalian species despite the absence of a Y chromosome.arrow_forwardConsider two blood polymorphisms that humans have in addition to the ABO system. Two alleles LM and LN determine the M, N, and MN blood groups. The dominant allele R of a different gene causes a person to have the Rh+ (rhesus positive) phenotype, whereas the homozygote for r is Rh− (rhesus negative). Two men took a paternity dispute to court, each claiming three children to be his own. The blood groups of the men, the children, and their mother were as follows:From this evidence, can the paternity of the children be established?arrow_forwardhelppparrow_forward
- Semen from a promising bull is going to be used for artificial insemination. However, the owner is concern that the bull may carry a recessive lethal condition. Cows in the heard are 35% homozygous dominant and 65% are heterozygous for the lethal gene. Using these information calculate the number of cows that the owner has to inseminate in order to be 90% confident that the bull is not a carrier. (Assume that all cows inseminated will have healthy normal calves).arrow_forwardColorblindness is an X-linked trait found in humans. What are the chances that a colorblind man will pass it on to his son? Please explain.arrow_forwardMales of many diploid species (like us) have X and Y sex chromosomes. They are hemizygous for most X- linked genes. Thus, males express most X-linked alleles, whether they are dominant or recessive in females. In the fruit fly Drosophila, it is common to achieve the equivalent of a test cross of X-linked genes in females by assessing the readily observed phenotypes of their male progeny. Since males do not receive X-linked genes from their father, sires of these crosses can be normal or wild-type flies. In fly genetics, it is conventional to name a gene after the mutant phenotype that enabled its discovery. Your challenge is to establish gene order and map distances between three X-linked genes in Drosophila. Each gene is represented by recessive mutant alleles that express rather distinctive phenotypes relative to their dominant wild-type alternative alleles. Flies expressing fruitless (f) are bisexual, lush (1) have a heightened responses to ethanol, and ken&barbie (kb) lack external…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
What are Mutations and what are the different types of Mutations?; Author: Science ABC;https://www.youtube.com/watch?v=I16YlE8qTBU;License: Standard youtube license