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MICROBIO 303 Exam queries and answers graded A+

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MICROBIO 303 Exam queries and answers graded A+

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MICROBIO 303 Exam queries and
answers graded A+
Designations of chromosomes based on - ANS✅✅centromere location



Shape of the chromosome during anaphase is determined by - ANS✅✅position of the centromere



If centromere location is middle, describe designation - ANS✅✅metacentric



If centromere location is between middle and end, describe designation - ANS✅✅submetacentric



If centromere location is close to end, describe designation - ANS✅✅acrocentric



If centromere location is at end, describe designation - ANS✅✅telocentric



which is p arm and which is q arm? - ANS✅✅p is short arm, q is long arm



which chromosomes are present in homologous pairs - ANS✅✅all but x and y chromosomes



what stage follows mitosis - ANS✅✅G1



what happens at G1 - ANS✅✅a new cycle initiates



what happens in G0 - ANS✅✅where in G1 cells can become nondividing



what phase is after G1 - ANS✅✅S phase (synthesis)



what happens in S phase - ANS✅✅DNA is synthesized



what phase<s> happens after S phase - ANS✅✅G2 phase and mitosis

, what is the product of mitosis and what happens after - ANS✅✅two daughter cells are produced
and the cycle begins anew for both cells



what are the 5 phases of mitosis in order - ANS✅✅prophase, prometaphase, metaphase,
anaphase, telophase



what happens in interphase - ANS✅✅chromosomes are extended and uncoiled, forming
chromatin



what happens in prophase - ANS✅✅chromosomes coil up and condense; centrioles divide and
move apart



what happens in prometaphase - ANS✅✅chromosomes are clearly double structures; centrioles
reach the opposite poles; spindle fibers form



what happens in metaphase - ANS✅✅centromeres align on metaphase plate



what happens in anaphase - ANS✅✅centromeres split and daughter chromosomes migrate to
opposite poles



what happens in telophase - ANS✅✅daughter chromosomes arrive at poles; cytokinesis
commences



from n, then how do you calculate number of different types of gametes formed - ANS✅✅2^n



what is n - ANS✅✅number of heterozygous gene pairs



from n, then how do you calculate number of different genotypes produced - ANS✅✅3^n



from n, then how do you calculate number of different phenotypes produced - ANS✅✅2^n

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