©JUSTTRACY EXAM SOLUTIONS
07/11/2024 10:15
BIO340 Genetics Exam 1 Questions And Answers
What is the arrangement of chromosomes during metaphase? - answers✔✔Sister chromatids
align along the equatorial plane of the cell.
When do sister chromatids (from each dyad) separate during meiosis? - answers✔✔Anaphase
II
In humans, what is the fundamental difference between the production of male gametes and
female gametes? - answers✔✔The production of female gametes but not male gametes
involves an unequal division of cytoplasm.
Female gametes are ____ times larger than sperm - answers✔✔400
During the production of female gametes, one _____ ____ contains most of the cytoplasm,
and one polar body contains only a small amount. - answers✔✔Daughter cell
Chromosome number in meiosis is reduced by ______ - answers✔✔1/2
Meiosis produces gametes, which fuse to form _____ that have the original number of
chromosomes present before meiosis. This can happen only if gametes contain 1/2 the
number of chromosomes as the ______ - answers✔✔zygote
DNA replication produces 2 identical molecules, called ______, which separate during
mitosis - answers✔✔sister chromatids
After chromosomes condense, the ____ is the region where the identical DNA molecules are
most tightly attached to each other - answers✔✔Centromere
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07/11/2024 10:15
In dividing cells, most of the cell's growth occurs during _____ - answers✔✔Interphase
During mitosis, microtubules attach to chromosomes at the ____ - answers✔✔Kinetochore
The _____ is a cell structure consisting of microtubules, which forms during early mitosis
and plays a role in cell division - answers✔✔Mitotic spindle
During interphase, most of the nucleus is filled with a complex of DNA and protein in a
dispersed form called ____ - answers✔✔chromatin
In most eukaryotes, division of the nucleus is followed by _____, when the rest of the cell
divides - answers✔✔cytokinesis
The ______ are the organizing centers for microtubulues involved in separating
chromosomes during mitosis - answers✔✔Centrosomes
When are sister chromatids present in all of part of the phases? - answers✔✔S, G2,
Beginning of M
When is DNA condensed in all or part of phase? - answers✔✔Beginning of M and End of M
When is DNA content per cell doubled in all or part of phase? - answers✔✔S, G2, Beginning
of M, End of M
Sister chromatids form when DNA replicates in the ___ phase - answers✔✔S
The sister chromatids become individual chromosomes once they separate in early ______ -
answers✔✔Anaphase
The cellular DNA content doubles in the ___ phase when the DNA replicates - answers✔✔S
, ©JUSTTRACY EXAM SOLUTIONS
07/11/2024 10:15
The cell's DNA content does not return to normal levels until after ____ is complete and 2
daughter cells have formed - answers✔✔Cytokinesis
The condensation state of the DNA is not related to the presence or absence of ___ -
answers✔✔sister chromatids
DNA condenses in ____ and remains condensed until after the sister chromatids separate and
the new daughter cells begin to form - answers✔✔Prophase
In late ______/_______, the emphasis shifts to cell growth and DNA replication for the next
cell cycle - answers✔✔Telophase/Cytokinesis
Most of a person's cells are _____, with 2 sets of chromosomes. One set is from their mother
and one set is from their father. - answers✔✔Diploid
Each maternal chromosome has a corresponding paternal chromosome. These matched pairs
are called ______ - answers✔✔Homologous chromosomes
During interphase, the homologous chromsomes are _____ - answers✔✔Duplicated
After they are duplicated in interphase, each chromosome has two identical copies called -
answers✔✔Sister chromatids
Each sister chromatid is made up of ____ wound around histone proteins and each strand
coils up into a tight helical fiber - answers✔✔DNA
As meiosis begins, a ____ forms - answers✔✔Spindle
When do duplicated centrosomes begin to migrate to opposite poles? - answers✔✔Prophase I
07/11/2024 10:15
BIO340 Genetics Exam 1 Questions And Answers
What is the arrangement of chromosomes during metaphase? - answers✔✔Sister chromatids
align along the equatorial plane of the cell.
When do sister chromatids (from each dyad) separate during meiosis? - answers✔✔Anaphase
II
In humans, what is the fundamental difference between the production of male gametes and
female gametes? - answers✔✔The production of female gametes but not male gametes
involves an unequal division of cytoplasm.
Female gametes are ____ times larger than sperm - answers✔✔400
During the production of female gametes, one _____ ____ contains most of the cytoplasm,
and one polar body contains only a small amount. - answers✔✔Daughter cell
Chromosome number in meiosis is reduced by ______ - answers✔✔1/2
Meiosis produces gametes, which fuse to form _____ that have the original number of
chromosomes present before meiosis. This can happen only if gametes contain 1/2 the
number of chromosomes as the ______ - answers✔✔zygote
DNA replication produces 2 identical molecules, called ______, which separate during
mitosis - answers✔✔sister chromatids
After chromosomes condense, the ____ is the region where the identical DNA molecules are
most tightly attached to each other - answers✔✔Centromere
, ©JUSTTRACY EXAM SOLUTIONS
07/11/2024 10:15
In dividing cells, most of the cell's growth occurs during _____ - answers✔✔Interphase
During mitosis, microtubules attach to chromosomes at the ____ - answers✔✔Kinetochore
The _____ is a cell structure consisting of microtubules, which forms during early mitosis
and plays a role in cell division - answers✔✔Mitotic spindle
During interphase, most of the nucleus is filled with a complex of DNA and protein in a
dispersed form called ____ - answers✔✔chromatin
In most eukaryotes, division of the nucleus is followed by _____, when the rest of the cell
divides - answers✔✔cytokinesis
The ______ are the organizing centers for microtubulues involved in separating
chromosomes during mitosis - answers✔✔Centrosomes
When are sister chromatids present in all of part of the phases? - answers✔✔S, G2,
Beginning of M
When is DNA condensed in all or part of phase? - answers✔✔Beginning of M and End of M
When is DNA content per cell doubled in all or part of phase? - answers✔✔S, G2, Beginning
of M, End of M
Sister chromatids form when DNA replicates in the ___ phase - answers✔✔S
The sister chromatids become individual chromosomes once they separate in early ______ -
answers✔✔Anaphase
The cellular DNA content doubles in the ___ phase when the DNA replicates - answers✔✔S
, ©JUSTTRACY EXAM SOLUTIONS
07/11/2024 10:15
The cell's DNA content does not return to normal levels until after ____ is complete and 2
daughter cells have formed - answers✔✔Cytokinesis
The condensation state of the DNA is not related to the presence or absence of ___ -
answers✔✔sister chromatids
DNA condenses in ____ and remains condensed until after the sister chromatids separate and
the new daughter cells begin to form - answers✔✔Prophase
In late ______/_______, the emphasis shifts to cell growth and DNA replication for the next
cell cycle - answers✔✔Telophase/Cytokinesis
Most of a person's cells are _____, with 2 sets of chromosomes. One set is from their mother
and one set is from their father. - answers✔✔Diploid
Each maternal chromosome has a corresponding paternal chromosome. These matched pairs
are called ______ - answers✔✔Homologous chromosomes
During interphase, the homologous chromsomes are _____ - answers✔✔Duplicated
After they are duplicated in interphase, each chromosome has two identical copies called -
answers✔✔Sister chromatids
Each sister chromatid is made up of ____ wound around histone proteins and each strand
coils up into a tight helical fiber - answers✔✔DNA
As meiosis begins, a ____ forms - answers✔✔Spindle
When do duplicated centrosomes begin to migrate to opposite poles? - answers✔✔Prophase I
