BSC 2010 (IRSC) Test 4 Questions with
Verified Answers
How is the number of chromosomes different in the parent cell compared to the
daughter cell? - ANSWERSeach daughter cell has half the chromosomes of the parent
cell
which cell is a diploid? - ANSWERSparent
which cell is a haploid? - ANSWERSdaughter
somatic cell - ANSWERSbody cells, diploid
gamete - ANSWERScells for sexual reproduction, haploid
fertilization (syngamy) - ANSWERSunion of two gametes
zygote - ANSWERSa fertilized egg, diploid
meiosis - ANSWERStype of eukaryotic cell division that produces haploid cells
when meiosis occurs how many cells can it create? - ANSWERSfour
in meiosis the daughter cells are____? - ANSWERShaploid cells
are the daughter cells in meiosis identical to each other? - ANSWERSno
how is sexual reproduction different than asexual reproduction? - ANSWERS2 parents
vs. 1 parent
meiosis for sexual vs. mitosis for asexual
genetically different vs. genetically identical
human life cycle - ANSWERS
germ-line cell - ANSWERSa cell that can divide by meiosis and give rise to gametes
synapsis - ANSWERSthe coming together of pairs of chromosomes
chiasmata - ANSWERSintersections where paired chromosomes overlap
crossing over - ANSWERSexchange of segments between two chromosomes
recombination - ANSWERSjoining of DNA from two different sources
, does DNA replication occur prior to meiosis? - ANSWERSyes
how many times does the nucleus divide during meiosis? - ANSWERStwo
why is it incorrect to simply refer to "anaphase" of meiosis? - ANSWERSyou have to
include a number (anaphase I)
which two structures move away from each other during meiosis I? -
ANSWERShomologous chromosomes
which structures move away from each other during meiosis II? - ANSWERSsister
chromatids
are sister chromatids identical after crossing over? - ANSWERSno
are homologous chromosomes identical? - ANSWERSno
two things that occur in prohase I of meiosis that do not occur during prophase of
mitosis - ANSWERSsynapsis of homologous pairs and crossing over
what two meiosis I phenomena generate the diversity in offspring? - ANSWERScrossing
over and independent orientation
meiosis I - ANSWERS
meiosis II - ANSWERS
how is metaphase I different from metaphase II? - ANSWERSthe cells in II are haploid
how is anaphase I different from anaphase II? - ANSWERSanaphase I: separates
homologous pairs
anaphase II: separates sister chromatids
which part of meiosis is the most similar to mitosis? - ANSWERSmeiosis II
when a person has three copies of chromosome 21 they are - ANSWERSaneuploid
what happens during cell division to cause this situation? - ANSWERSnondisjunction
four distinct features of meiosis that distinguish it from mitosis - ANSWERS1) synapsis,
crossing over
2) meiosis I, sister chromatids stay together
3) sister chromatids do not separate until meiosis II
4) there is no DNA replication before meiosis II
Verified Answers
How is the number of chromosomes different in the parent cell compared to the
daughter cell? - ANSWERSeach daughter cell has half the chromosomes of the parent
cell
which cell is a diploid? - ANSWERSparent
which cell is a haploid? - ANSWERSdaughter
somatic cell - ANSWERSbody cells, diploid
gamete - ANSWERScells for sexual reproduction, haploid
fertilization (syngamy) - ANSWERSunion of two gametes
zygote - ANSWERSa fertilized egg, diploid
meiosis - ANSWERStype of eukaryotic cell division that produces haploid cells
when meiosis occurs how many cells can it create? - ANSWERSfour
in meiosis the daughter cells are____? - ANSWERShaploid cells
are the daughter cells in meiosis identical to each other? - ANSWERSno
how is sexual reproduction different than asexual reproduction? - ANSWERS2 parents
vs. 1 parent
meiosis for sexual vs. mitosis for asexual
genetically different vs. genetically identical
human life cycle - ANSWERS
germ-line cell - ANSWERSa cell that can divide by meiosis and give rise to gametes
synapsis - ANSWERSthe coming together of pairs of chromosomes
chiasmata - ANSWERSintersections where paired chromosomes overlap
crossing over - ANSWERSexchange of segments between two chromosomes
recombination - ANSWERSjoining of DNA from two different sources
, does DNA replication occur prior to meiosis? - ANSWERSyes
how many times does the nucleus divide during meiosis? - ANSWERStwo
why is it incorrect to simply refer to "anaphase" of meiosis? - ANSWERSyou have to
include a number (anaphase I)
which two structures move away from each other during meiosis I? -
ANSWERShomologous chromosomes
which structures move away from each other during meiosis II? - ANSWERSsister
chromatids
are sister chromatids identical after crossing over? - ANSWERSno
are homologous chromosomes identical? - ANSWERSno
two things that occur in prohase I of meiosis that do not occur during prophase of
mitosis - ANSWERSsynapsis of homologous pairs and crossing over
what two meiosis I phenomena generate the diversity in offspring? - ANSWERScrossing
over and independent orientation
meiosis I - ANSWERS
meiosis II - ANSWERS
how is metaphase I different from metaphase II? - ANSWERSthe cells in II are haploid
how is anaphase I different from anaphase II? - ANSWERSanaphase I: separates
homologous pairs
anaphase II: separates sister chromatids
which part of meiosis is the most similar to mitosis? - ANSWERSmeiosis II
when a person has three copies of chromosome 21 they are - ANSWERSaneuploid
what happens during cell division to cause this situation? - ANSWERSnondisjunction
four distinct features of meiosis that distinguish it from mitosis - ANSWERS1) synapsis,
crossing over
2) meiosis I, sister chromatids stay together
3) sister chromatids do not separate until meiosis II
4) there is no DNA replication before meiosis II
