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CH9

Biology 1301

QuestionAnswer
The advantage of sexual reproduction over asexual reproduction is there is a mixing of genetic information into a new combination in the next generation
A homologous chromosome pair is best described as two chromosomes having the same genes in the same order but possibly having different alleles of those genes
If a normal diploid germ cell in a bird has eight chromosomes, then there are four chromosomes per cell after the first meiotic division and cytokinesis
Homologous chromosomes undergo recombination during prophase I.
Sister chromatids are best described as two chromosomes having an identical DNA sequence
Nondisjunction in Meiosis I results in one pole of the cell receiving neither member of a homologous pair of chromosomes
Which of the following statements is TRUE about chromosomes Homologous chromosomes have the same genes on them but can have different alleles
In a frog in which the diploid number of chromosomes per cell is 24, what is the total number of chromatids present per cell in Prophase II after the first division and cytokinesis? 24
The purpose of the synaptonemal complex is to hold the homologous chromosomes tightly together, support homologous chromosomes as they undergo recombination, and prevent chromosome fragments from floating free in the cytosol after DNA breakage for recombination
Identical twins can result from a division of a zygote into two separate cells that develop into two separate embryos
The process of fertilization is random in the selection of which gametes fuse
If a species has 42 pairs of chromosomes, which value represents the number of combinations of maternal and paternal chromosome combinations that will be sorted to the poles? 2^42
What four gametes will result from a single chiasma if the chromosomes have the following genes: HC1: Ab; HC2: aB? Ab, AB, ab, aB
Which pattern of diploid and haploid phases reflect the life cycle in animals a single generation that limits the haploid state to gametes while the rest of the organism is diploid
Which pattern of diploid and haploid phases reflect the life cycle in plants alternation between haploid and diploid generations
Which pattern of diploid and haploid phases reflect the life cycle in some fungi and algae, but not plants or animals a life cycle that limits the diploid state to a single cell produced by fertilization
Which multicellular organism on earth most closely resembles to have a diploid state only following fertilization then Meiosis the majority of this organism's life is spent in a haploid state some algae
In plants, the gametes produced by a particular gametophyte are always identical because they result from mitosis.
True or false: In meiosis after the first division, the two resulting cells are still diploid False
Created by: TejasRanger29
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