During meiosis, homologous chromosomes synapse and form tetrads. In a homologous pair, one of the chromosomes comes from the mother (maternal homologue) and one comes from the father (paternal homologue). Since replication occurs before meiosis, each tetrad consists of four chromatids (tetra means four). The chromatids of the same homologue are called sister chromatids, and the chromatids of different homologues are called non-sister chromatids. If the maternal homologue carries allele A and the paternal homologue carries allele a for a certain gene, which of the following will have different alleles for this gene? Select one: a. Non-sister chromatids b. Sister chromatids c. None of the chromatids, since each chromatid in a tetrad contains the same allele d. All four chromatids, since each chromatid in a tetrad has a different allele
During meiosis, homologous chromosomes synapse and form tetrads. In a homologous pair, one of the chromosomes comes from the mother (maternal homologue) and one comes from the father (paternal homologue). Since replication occurs before meiosis, each tetrad consists of four chromatids (tetra means four). The chromatids of the same homologue are called sister chromatids, and the chromatids of different homologues are called non-sister chromatids. If the maternal homologue carries allele A and the paternal homologue carries allele a for a certain gene, which of the following will have different alleles for this gene? Select one: a. Non-sister chromatids b. Sister chromatids c. None of the chromatids, since each chromatid in a tetrad contains the same allele d. All four chromatids, since each chromatid in a tetrad has a different allele
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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During meiosis, homologous chromosomes synapse and form tetrads. In a homologous pair, one of the chromosomes comes from the mother (maternal homologue) and one comes from the father (paternal homologue).
Since replication occurs before meiosis, each tetrad consists of four chromatids (tetra means four). The chromatids of the same homologue are called sister chromatids, and the chromatids of different homologues are called non-sister chromatids.
If the maternal homologue carries allele A and the paternal homologue carries allele a for a certain gene, which of the following will have different alleles for this gene?
Since replication occurs before meiosis, each tetrad consists of four chromatids (tetra means four). The chromatids of the same homologue are called sister chromatids, and the chromatids of different homologues are called non-sister chromatids.
If the maternal homologue carries allele A and the paternal homologue carries allele a for a certain gene, which of the following will have different alleles for this gene?
Select one:
a. Non-sister chromatids
b. Sister chromatids
c. None of the chromatids, since each chromatid in a tetrad contains the same allele
d. All four chromatids, since each chromatid in a tetrad has a different allele
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