Two distinct species of organisms breed and create a hybrid. The hybrid was the result of nondisjunction during meiosis I for both of the parent species. The hybrid organism's genotype would best be described as O Autodiploidic O Amphidiploidic or allodiploidic O Allotetrasomic O Autotetrasomic O Autotetraploidic

Two distinct species of organisms breed and create a hybrid. The hybrid was the result of nondisjunction during meiosis I for both of the parent species. The hybrid organism's genotype would best be described as O Autodiploidic O Amphidiploidic or allodiploidic O Allotetrasomic O Autotetrasomic O Autotetraploidic

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter9: Patterns Of Inheritance

Section: Chapter Questions

Problem 11SQ

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One chromosome of a homologous pair carries the genes J am K. The othen chromosome of the pair carries the genes j and k at corresponding loci. Crossing results in exchange of chromosome segments and production of gametes combinations of genes. A "recombinaut new typegamete resulfing from this cross oven might contain: A-Jaud K D-K and k B-J aud j E-j and K and k
An individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B • C D E F G A B • C D V W X R S • T U E F G R S • T U V W X Q. Diagram the alternate, adjacent-1, and adjacent-2 segregation patterns in anaphase I of meiosis.
in the experiment of following chromosomal dna mvement througgh meiosis, why. do you use non-sister chromatids to demobstrate crossing over? what combinatiobns of alleles could result from a crossover between BD and bd chromosomes? Identify two ways that meiosis contributes to genetic recombination. Why is it necessary to reduce the number of chromosomes in gametes, but not in other cell?
Meiotic nondisjunction is much more likely than mitotic nondisjunction.Based on this observation, would you conclude that meioticnondisjunction is usually due to nondisjunction during meiosisI or meiosis II? Explain your reasoning?
ntent Ô https://learn.humber.ca/ultra/courses/_182213_1/cl/outline * Question Completion Status: Crossing over during prophase I results in O nondisjunction O reciprocal translocation O duplication O genetic variation QUESTION 4 Genetic variation is accomplished by all but one of the following. Choose the exception. O the events of meiosis I O crossing over independent assortment the events of meiosis II O O O O
An individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B • C D E F G A B • C D V W X R S • T U E F G R S • T U V W X Q. Draw the pairing arrangement of these chromosomes in prophase I of meiosis.
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The frequency of single crossover recombinant gametes (those with chromosomes having crossed over) occurring is half the frequency of the actual crossing over event. What would best explain this? O Each crossover takes place between only non-sister chromatids of a homologous chromosome pair O Crossovers occur in about 50% of meiosis events O This doesn't actually occur because all genes are on separate chromosomes O A test cross between a homozygous and heterozygote produces % heterozygotes and % homozygotes progeny O Shugoshin is inappropriately expressed in meiosis II causing nondisjunction to occur
Which of the following statement is true? Recombinants can be formed by crossovers during meiosis II ORecombinant frequencies lower than 50% are diagnostic for linkage. O Recombinant frequencies higher than 25% are indications of no linkage. O Recombinants of linked genes can be formed in the absence of crossover. O Recombinants cannot be formed without crossovers during meiosis I
Which of the following chromosomal rearrangements usually results in normal meiosis? translocation homozygote translocation heterozygote paracentric inversion heterozygote pericentric inversion heterozygote
Figure 7.2 If a mutation occurs so that a fungus is no longer able to produce a minus mating type, will it still be able to reproduce? Figure 7.2 (a) In animals, sexually reproducing adults form haploid gametes from diploid germ cells. (b) Fungi, such as black bread mold (Rhizopus nigricans), have haploid-dominant life cycles. (c) Plants have a life cycle that alternates between a multicellular haploid organism and a multicellular diploid organism. (credit c fern: modification of work by Cory Zanker; credit c gametophyte: modification of work by Vlmastra/Wikimedia Commons)
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