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
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
