Biology

Biology, 02.07.2019 23:30, jackfrost5

What is the end result and purpose of meiosis? 4 gametes that have half the number of chromosomes, ultimately this lead to genetic diversity. 4 zygotes that have half the number of chromosomes, ultimately this lead to genetic diversity. 2 daughter cells that are identical to each other, used for growth and repair. 1 embryo to create a new human

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Biology, 22.06.2019 00:10, bobtothemaxthe1st

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

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Biology, 22.06.2019 14:30, kiwe595

Which statement is not an accurate description of meiosis? a) meiosis produces offspring that are genetically diverse. b) meiosis produces offspring that are identical to the parent. c) in sexual reproduction half of the genetic material comes from the father (sperm) and half of the genetic material comes from the mother (egg). d) meiosis decreases the number of chromosomes by half so that when a sperm fertilizes an egg, the resulting zygote has the correct number of chromosomes.

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Biology, 04.08.2019 14:40, cylertroutner

1) which of the statements below is not true about meiosis and/or mitosis. a) one reason meiosis i is different from mitosis because homologous pairs of chromosomes line up next to each other and then separate. b) daughter cells are produced in meiosis with half the number of chromosomes as the parent cell. c) no exchange of genetic material is exchanged during meiosis, so there is no genetic diversity as a result of this process. 6) which of the following is a true statement about crossing over? a) crossing over occurs in both mitosis and meiosis i b) crossing over occurs during prophase i of meiosis; because of crossing over, genetic variation in the resulting gametes is increased. c) crossing over occurs in telophase ii of meiosis; it decreases the genetic variability in the gametes produced.

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Biology, 30.09.2019 22:30, taquavienw

How would meiosis differ without independent assortment? select the two correct answers. the genetic diversity generated by meiosis would be limited to recombination. no genetic diversity among gametes would be generated during meiosis. recombination would not occur because homologous chromosomes would not pair. each gamete would have a random combination of maternal and paternal chromosomes. gametes would have all maternal chromosomes or all paternal chromosomes. 2. how does recombination contribute to offspring diversity? select the two correct answers. it yields gametes with random combinations of maternal and paternal chromosomes. it modifies chromosomes to generate new alleles of genes that code for proteins. it generates gametes with selective advantages over the gametes of competitors. it increases the genetic diversity among gametes produced by an organism. it yields chromosomes that contain both maternal and paternal dna.

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