AP BIOLOGY CHAPTER 13 (MEIOSIS) EXAM QUESTIONS AND ANSWERS 100% CORRECT! (GRADED A+)
homologous chromosomes - ANSWER members of a pair of chromosomes; same size, same banding pattern, same centromere placement, same genes (matching chromosome from parents) autosomes - ANSWER the other 44 chromosomes, not including sex chromosomes haploid cells - ANSWER cells that have 1 of each type of chromosome; called egg and sperm diploid - ANSWER cells that have 2 of each chromosome (somatic cells) gamete - ANSWER reproductive cells which fuse in fertilization; (sperm and egg); carry hereditary traits to the offspring; develop from germ cells in the gonads (ovaries and testes) zygote - ANSWER cell resulting from union of egg and sperm karyotype - ANSWER lining up of chromosomes How many chromatids are present in metaphase II in a cell undergoing meiosis from an organism in which 2n=24? - ANSWER 24 synapsis - ANSWER when the two homologous pairs come together resulting in a tetrad What are the 3 contributions of genetic variation? - ANSWER independent assortment of chromosomes( orientation of homologous pairs of chromosomes at Metaphase I); crossing over; random fertilization
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