1. What is always passed to the next generation as a result of sexual reproduction? A. Homologous chromosomes from the mother. B. A chromatid from every chromosome of the father C. a haploid set of chromosomes from the mother d. all alleles from each parent 2. when do splitting of centromeres, random assortment of chromosomes and reduction division of chromosomes take place? A. Interphase and meiosis I B. Meiosis I C. Meiosis I and meiosis II D. Meiosis II only
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Step 2: The splitting of centromeres, random assortment of chromosomes, and reduction division of chromosomes take place during Meiosis I. **1. C. a haploid set of chromosomes from the mother Show more…
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1) Assume a diploid organism. "Cell is diploid, homologous pairs of chromosomes are lining up near the middle of the cell" best describes a) metaphase II b) anaphase I c) anaphase II d) metaphase I B) Meiosis, like mitosis is preceded by DNA replication to form sister chromatids attached at a centromere. Which of the following statements about Meiosis is incorrect? a) During Meiosis there is an equal exchange of genetic material between non-sister chromatids known as crossing over. b) During Meiosis the DNA replicates once and divides twice. Because of this Meiosis is also known as reduction division. d) Meiosis results in daughter nuclei that are identical in each other and to the parental nucleus in terms of chromosome number and genetic makeup. e) Meiosis results in daughter nuclei with a haploid number of chromosomes (half the chromosome number as the parent nucleus) and a different genetic makeup as the parental chromosomes.
Suman K.
1. Do you expect the X chromosome in human males to undergo genetic recombination during meiosis? A) Yes B) No 2. During meiosis genetic exchange between non-homologous chromosomes occurs at which stage? A) Prophase of meiosis 1 B) Prophase of meiosis 2 C) Metaphase of meiosis 1 D) Anaphase of meiosis 2 E) There is no genetic exchange between non-homologous chromosomes in meiosis 3. For an organism with a diploid number of 2n = 46, what is the ploidy after DNA replication and before meiosis 1 commences? A) 46 B) 23 C) 92 D) 79 E) 4
Evelyn D.
In meiosis, a. meiosis II reduces the chromosome number from diploid to haploid. b. DNA replicates between meiosis I and meiosis II. $c$ the chromatids that make up a chromosome in meiosis II are identical. $d$. each chromosome in prophase I consists of four chromatids. e. homologous chromosomes separate from one another in anaphase I.
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