Need help on this one Crossing over is a process which contributes to diversity in offspring of anorganism. Which statement BEST explains this process?XXb bB BDuring metaphase II, sister chromatids of a homologous pair exchange genetic information.Homologous chromosomes exchange genetic information during prophase ISister chromatids separate to form haploid cells during anaphase IIO A sister chromatid from one homologous pairs switches places with a sister chromatid from adifferent homologous pair.

Crossing over is the process that occurs in meiosis during the formation of male and female gametes…

Crossing over is a process which contributes to diversity in offspring of an prganism. Which statement BEST explains this process? XX b B B O During metaphase II, sister chromatids of a homologous pair exchange genetic information. O Homologous chromosomes exchange genetic information during prophase I Sister chromatids separate to form haploid cells during anaphase II A sister chromatid from one homologous pairs switches places with a sister chromatid from a different homologous pair.

Crossing over is a process which contributes to diversity in offspring of an prganism. Which statement BEST explains this process? XX b B B O During metaphase II, sister chromatids of a homologous pair exchange genetic information. O Homologous chromosomes exchange genetic information during prophase I Sister chromatids separate to form haploid cells during anaphase II A sister chromatid from one homologous pairs switches places with a sister chromatid from a different homologous pair.

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter6: Reproduction At The Cellular Level

Section: Chapter Questions

Problem 1ACQ: Figure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids...

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A cell has a diploid number of 6 (2n = 6). a. Draw the cell in metaphase of meiosis I. b. Draw the cell in metaphase of mitosis. c. How many chromosomes are present in a daughter cell after meiosis I? d. How many chromatids are present in a daughter cell after meiosis II? e. How many chromosomes are present in a daughter cell after mitosis? f. How many pairs of homologous chromosomes are visible in the cell in metaphase of meiosis I?
Figure 10.6 Which of the following is the correct order of events in mitosis? Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the mitotic spindle. The nucleus reforms and the cell divides. Cohesin proteins break down and the sister chromatids separate. The kinetochore becomes attached to the mitotic spindle. Cohesin proteins break down and the sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the cohesin proteins. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. Cohesin proteins break down and the sister chromatids separate. The nucleus reforms and the cell divides.
Separation of the sister chromatids is a characteristic of which stage of mitosis? a. prometaphase b. metaphase c. anaphase d. telophase
A cell (2n = 4) has undergone cell division. Daughter cells have the following chromosome content. Has this cell undergone mitosis, meiosis I, or meiosis II?
This diagram shows an animal cell in meiosis I during crossing over and synapsis. A single tetrad is shown with a pair of homologous chromosomes that have been duplicated as sister chromatids. Red chromosomes indicate maternal DNA, and blue chromosomes indicate paternal DNA. Use the passage to answer the question. Once the animal cell has completed meiosis II: A. half of the gametes will contain recombinant chromosomes. B. none of the gametes will contain recombinant chromosomes. C. all of the gametes will contain maternal DNA. D. all of the gametes will contain paternal DNA.
In an organism with 6 pairs of chromosomes, how many chromosomes and DNA molecules (chromatids) will be present in EACH cell at the following stages: a. G1: chromosomes _______ chromatids _________ b. Metaphase of mitosis: chromosomes ______ chromatids Answer _______ c. Following telophase of mitosis: chromosomes________ chromatids _____ d. Metaphase of meiosis I: chromosomes _____ chromatids ______ e. Following telophase of meiosis I: chromosomes _______ chromatids ________ f. Following completion of meiosis II: chromosomes _____ chromatids _____
A cell in G1 of interphase has 12 chromosomes. How many chromosomes and DNA molecules (chromatids) will be found per cell when this original cell progresses to the following stages? a) G2 of interphaseb) Metaphase I of meiosisc) Prophase of mitosisd) Prophase II of meiosise) After cytokinesis following mitosis f) After cytokinesis following meiosis
Disorders in chromosome number are caused by ______________. Fungi and some protists exhibit a ____________ type of life cycle. diploid-dominant alternation of generations haploid-dominant Microtubules attach to the individual kinetochores of the sister chromatids during ______________. prometaphase I prometaphase II anaphase II anaphase I
A chiasma links a pair of (a) homologous chromosomes at prophase II (b) homologous chromosomes at late prophase I (c) sister chromatids at metaphase II (d) sister chromatids at mitotic metaphase (e) sister chromatids at metaphase I
If a parent cell of a sexually-reproducing species has 28 chromosomes, the number of chromosomes in the zygote would be 14. 28. 56. 112. impossible to determine with the information given. A tetrad is composed of two chromosomes with two sister chromatids each. two sister chromatids with separate centromeres. four chromosomes with two sister chromatids each. four sister chromatids are attached at a common centromere. QUESTION 3 During crossing-over genetic material is exchanged between sister chromatids, resulting in new combinations of alleles. genetic material is exchanged between non-sister chromatids, resulting in new combinations of alleles. sister chromatids from each homologous chromosomes of a tetrad are exchanged, resulting in new combination of alleles. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations…
Prophase I in meiosis and Prophase in mitosis have a number of important differences, which of the answers below are one of those differences? a. Prophase I has fewer chromatids than Prophase b. Prophase only occurs in plant cells unlike Prophase I c. Prophase 1 has paired homologous chromosomes which Prophase does not d. Prophase has tetrad/bivalent structures while Prophase I does not
A cell undergoing division has a haploid chromosome number of 15. Give the numerical value for each of the following: a) number of chromatids in a cell in anaphase of mitosisb) number of chromosomes in a cell in metaphase of mitosisc) number of homologous pairs in a cell in prophase of meiosis I d) number of chromatids in a cell in metaphase of meiosis IIe) number of centromeres in a cell in prophase of meiosis II f) number of centromeres following cytokinesis of meiosis I