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Bio Exam 4 - Mastering Biology Questions and Answers 2024
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Bio Exam 4 - Mastering Biology
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Bio Exam 4 - Mastering BiologyInterphase - answer Nucleoli are present during _____.
Telophase - answer Cytokinesis often, but not always, accompanies _____.
Prophase - answer Chromosomes become visible during _____.
Anaphase - answer Centromeres divide and sister chromatids become full-fledged
chromosomes during _____.
Prometaphase - answer Spindle fibers attach to kinetochores during _____.
Two chromosomes and four chromatids - answer During prophase a homologous pair of
chromosomes consists of _____.
The mitotic phase - answer During _____ both the contents of the nucleus and the
cytoplasm are divided.
Interphase - answer During _____ the cell grows and replicates both its organelles and
its chromosomes.
The synthesis of sister chromatids - answer Which of the following is a function of the S
phase in the cell cycle?
S phase - answer The copying of chromosomes occurs during which of the following
phases of the cell cycle?
The cells get smaller with each generation - answer For the first several divisions of
early frog embryos, cells proceed directly from the M phase to the S phase and back to
M without gaps. Which of the following is likely to be true about dividing cells in early
frog embryos?
False - answer True or false? The M phase is characterized by the replication and
division of a cell's chromosomes.
34 - answer If an organism normally has 34 chromosomes, how many molecules of
DNA should there be in the G1 phase of the cell cycle?
Poor nutrient conditions - answer Which of the following events would cause the cell
cycle to arrest?
Meiosis - answer Human gametes are produced by _____.
, 23 - answer Normal human gametes carry _____ chromosomes.
16 - answerA diploid organism whose somatic (nonsex) cells each contain 32
chromosomes produces gametes containing _____ chromosomes.
two...haploid - answer Meiosis I produces _____ cells, each of which is _____.
four...haploid - answer Meiosis II typically produces _____ cells, each of which is _____.
anaphase II - answer During _____ sister chromatids separate.
Telophase I - answer At the end of _____ and cytokinesis, haploid cells contain
chromosomes that each consist of two sister chromatids.
Prophase I - answer Synapsis occurs during _____.
Anaphase I - answer Homologous chromosomes migrate to opposite poles during
_____.
Metaphase II - answer During _____ chromosomes align single file along the equator of
a haploid cell.
Telophase II - answer At the end of _____ and cytokinesis there are four haploid cells.
Prophase II - answer During _____ a spindle forms in a haploid cell.
The two chromatids were formed by replication of the DNA with a single chromatid -
answer What process led to the formation of the two chromatids?
Barring mutation, the two sister chromatids must be identical - answer Two sister
chromatids are joined at the centromere prior to meiosis. Which statement is correct?
Meiosis - answer What process is responsible for the independent assortment of
alleles?
Fusion of gametes - answer How do cells acquire homologous chromosome pairs that
carry the alleles that are independently assorted?
Alleles of different genes segregate from one another in a random manner - answer
Which of the following statements most accurately describes the process of
independent assortment?
False - answer True or false? The principle of independent assortment is best illustrated
by events that take place during metaphase II, during which sister chromatids segregate
independently of each other.
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