INTEGRAT PRINC OF ZOO (LL W/ CONNECT)
18th Edition
ISBN: 9781264177875
Author: HICKMAN
Publisher: MCG
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Textbook Question
Chapter 5, Problem 3RQ
What are the designations of the sex chromosomes in males of bugs, humans, and butterflies?
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Which pair number represents the sex chromosomes?
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If nondisjunction occurs in humans for one pair of homologous chromosomes during meiosis I. The other pairs segregate normally.
a) Will any normal gametes result?
b) How many chromosomes will each human gamete have?
If nondisjunction occurs in humans for sister chromatids during meiosis II. The other pairs segregate normally.
a) Will any normal gametes result?
b) How many chromosomes will each human gamete have?
Chapter 5 Solutions
INTEGRAT PRINC OF ZOO (LL W/ CONNECT)
Ch. 5 - What is the relationship between homologous...Ch. 5 - Describe or diagram the sequence of events in...Ch. 5 - What are the designations of the sex chromosomes...Ch. 5 - Prob. 4RQCh. 5 - Diagram by Punnett square a cross between...Ch. 5 - Prob. 6RQCh. 5 - Assuming brown eyes (B) are dominant over blue...Ch. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - Prob. 10RQ
Ch. 5 - Assume that right-handedness (R) is genetically...Ch. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Distinguish the following: euploidy, aneuploidy,...Ch. 5 - Prob. 15RQCh. 5 - Prob. 16RQCh. 5 - Prob. 17RQCh. 5 - Prob. 18RQCh. 5 - Prob. 19RQCh. 5 - Prob. 20RQCh. 5 - Prob. 21RQCh. 5 - Why do many mutations have no detectable effects...Ch. 5 - Distinguish between proto-oncogene and oncogene....Ch. 5 - Prob. 24RQCh. 5 - Outline the essential steps in the polymerase...Ch. 5 - Prob. 26RQCh. 5 - Prob. 27RQCh. 5 - Prob. 1FFT
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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
- What is the number of sex chromosomes in male honey bees? We know that the chromosome set of males in honey bees is 1n and the chromosome set of female honeys is 2n, and based on this, the number of autosomal chromosomes in male honeybees is 16 chromosomes, and the number of autosomal chromosomes in female honey is 32 chromosomes, but if The male was haploid (1n) Will this make the number of autosomes equal to the number of sex chromosomes? Please clarify the answerarrow_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_forwardWhat is meant by the termhomologous chromosomes?arrow_forward
- What are nonhomologous chromosomes?arrow_forwardIf nondisjunction occurs in humans for one pair of homologous chromosomes during meiosis I. The other pairs segregate normally. a) Will any normal gametes result? b) How many chromosomes will each human gametehave? If nondisjunction occurs in humans for sister chromatids during meiosis II. The other pairs segregate normally. a) Will any normal gametes result? b) How many chromosomes will each human gamete have?arrow_forwardIf zebrafish have a diploid number of 12, what is the chromosome number in the daughter cells of the somatic cells? What about the chromosome number in the sex cells (sperm and egg cells).arrow_forward
- A diploid organism produces four gametes from one parent cell through the process of meiosis. Two gametes are found to have 7 chromosomes and two gametes are found to have 5 chromosomes. A) Is this the expected number of chromosomes that would be found in each gamete following a normal cycle of meiosis? If yes, explain why. If no, explain why not and describe how the gamete situation described above occurred. B) Determine the number of homologous chromosome pairs that the original parent cell contained, before meiosis began. Explain how you determined this value.arrow_forwardWhy are the homologous regions of the X and Y chromosome important during meiosis?arrow_forwardA specific human individual with a male sex has the same sex chromosome complement as a metafemale Drosophila fly. Both individuals have a diploid set of autosomes.i) What is the sex chromosome complement of these two individuals? ii) If these individuals were produced from a fertilization event involving an abnormal egg and abnormal sperm cell, provide the genetic make-up of the two gametes? Clearly indicate the male and female gametes.arrow_forward
- How many genes are there present on chromosome 9?arrow_forwardWhat are sex chromosomes?arrow_forwardA boy with Down syndrome (trisomy 21) has 46 chromosomes. One parent and his two older sisters have a normal phenotype, but each have 45 chromosomes. a)Explain how this is possible. b)How many chromosomes do you expect to see in karyotypes of the parents? c)What term best describes this kind of chromosome abnormality? d)What is the probability the next child of this couple will have a normal phenotype and have 46 chromosomes? Explain your answer.arrow_forward
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