Which of the following scenarios below can create a gamete with a large deletion of a chromosome? Select all that apply. Group of answer choices a. Crossing over between homologous chromosomes with misaligned repetitive sequences b. Nondisjunction of homologous chromosomes during meiosis I c.Crossing over between homologous chromosomes within an inversion loop d. Independent assortment of a translocation chromosome and its homologs during meiosis e. Segregating a trisomic chromosome during meiosis I

Which of the following scenarios below can create a gamete with a large deletion of a chromosome? Select all that apply. Group of answer choices a. Crossing over between homologous chromosomes with misaligned repetitive sequences b. Nondisjunction of homologous chromosomes during meiosis I c.Crossing over between homologous chromosomes within an inversion loop d. Independent assortment of a translocation chromosome and its homologs during meiosis e. Segregating a trisomic chromosome during meiosis I

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter14: Human Inheritance

Section: Chapter Questions

Problem 15SA: Match the chromosome terms appropriately. ___ polyploid a. symptoms of a genetic disorder ___...

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Which of the following statements are true regarding homologous pairs of chromosomes? Select all that apply. A. They are the same size B. Their prescence indicates a cell is a diploid C. They are identical copies of one another D. One of the homologous chromosomes in a set is synthesized during S phase E. They line up next to each other during metaphase I of meiosis F. They are separated in anaphase I of meiosis
Hi, I'm having some trouble with this practice problem from my study guide. If anyone can explain it it would be very helpful! Sometimes nondisjunction will occur in a parent that has normal chromosome numbers and result in an offspring that has abnormal number of chromosomes. The phenotype of the affected offspring will often allow geneticists to determine in which parent and during which division of meiosis the nondisjunction occurred. In each of the examples below, assume the parents have a normal diploid chromosome complement. A man with the X-linked dominant condition “brown tooth enamel” and a woman with normal tooth enamel produce a son with brown tooth enamel. Let’s call the allele for brown tooth enamel “XB” and normal tooth enamel “Xb”. EXAMPLE 1: The parents in the family above produce another son, this time with two Y chromosomes and normal tooth enamel. In which parent did the nondisjunction occur? Explain and/or illustrate. Did nondisjunction occur at meiosis I or II?…
Hi, I'm having some trouble with this practice problem from my study guide. If anyone can explain it it would be very helpful! Sometimes nondisjunction will occur in a parent that has normal chromosome numbers and result in an offspring that has abnormal number of chromosomes. The phenotype of the affected offspring will often allow geneticists to determine in which parent and during which division of meiosis the nondisjunction occurred. In each of the examples below, assume the parents have a normal diploid chromosome complement. EXAMPLE 1: A man with the X-linked dominant condition “brown tooth enamel” and a woman with normal tooth enamel produce a son with brown tooth enamel. Let’s call the allele for brown tooth enamel “XB” and normal tooth enamel “Xb”. In which parent did the nondisjunction occur? Explain and/or illustrate Did nondisjunction occur at meiosis I or II? Explain and/or illustrate. What sex chromosomes are in the child’s somatic cells? EXAMPLE 2: The parents in the…
The letters below represent genes found on different chromosome pairs. Letters that are similar represent one gene found in a pair of homologous chromosomes. Another letter represents another gene found in another pair of chromosomes. Draw how these different pairs of chromosomes behave during meiosis. (a) Cc (b)BbCC (c)DdEe (d) AAbbCc (e) AaBbCcDd
What two processes are responsible for generating genetic diversity in gametes? Select one or more: a. Independent assortment of homologous chromosomes b. Separation of sister chromatids c. Recombination (“crossing over”) of sister chromatids d. Recombination (“crossing over”) of homologous chromosomes
Answer the following: 1. What are the different types of chromosomes? Draw and discuss each. 2. Discuss the following types of sex determination and give example. a. Male Heterogamety b. Female Heterogamety c. HaploDiploidy System d. Ratio System e. Environmental Method through Position, Temperature Dependent, Location Dependent 3. What is dosage compensation? Give its importance. asap
A. Please explain the key differences between each of the following pairs of terms. (i) Haploid vs. monoploid (ii) Pericentric inversion vs. paracentric inversion (Please include a simple diagram, along with your written explanation.) (iii) Homologous chromosomes vs. homeologous chromosomes:
Consider a diploid organism that follows the XX-XO mode of sex determination. Normally, there are 7 chromosomes in its somatic cell. The chromosomal composition is as follows: Chromosome I is a large acrocentric chromosome Chromosome II is a large telocentric chromosome Chromosome III is a small telocentric chromosome Chromosome IV (X chromosome) is a medium submetacentric chromosome Aneuploidy was observed in a particular individual wherein there are three copies of Chromosome III. Illustrate the source of aneuploidy if it occurs in Meiosis I. Diagram spermatogenesis starting with the primary spermatocyte up to spermatozoa, making sure to distinguish between chromosomes and the different phases of meiosis I (prophase I*, metaphase I, anaphase I, telophase I). Indicate the respective chromosome equation and chromosome number of the primary spermatocyte, secondary spermatocyte, spermatid, and spermatozoon.
Match the chromosome terms appropriately. ___ polyploid a. symptoms of a genetic disorder ___ deletion b. chromosomal mashup ___ aneuploidy c. extra sets of chromosomes ___ translocation d. gets around ___ syndrome e. a chromosome segment lost ___ transposable element f. one extra chromosome ___ X-linked g. allele on the X chromosome
Alternative forms of the same gene are called _________ . a. gametes c. alleles b. homologous d. sister chromatids
Discuss the following sets of terms: a. trisomy and triploidy b. aneuploidy and polyploidy
I am not sure how to explain what parent the nondisjunction occurred from in example 2 part 1. Sometimes nondisjunction will occur in a parent that has normal chromosome numbers and result in an offspring that has abnormal number of chromosomes. The phenotype of the affected offspring will often allow geneticists to determine in which parent and during which division of meiosis the nondisjunction occurred. In each of the examples below, assume the parents have a normal diploid chromosome complement. EXAMPLE 1: A man with the X-linked dominant condition “brown tooth enamel” and a woman with normal tooth enamel produce a son with brown tooth enamel. Let’s call the allele for brown tooth enamel “XB” and normal tooth enamel “Xb”. In which parent did the nondisjunction occur? Explain and/or illustrate Did nondisjunction occur at meiosis I or II? Explain and/or illustrate. What sex chromosomes are in the child’s somatic cells? EXAMPLE 2: The parents in the family above produce another…