C190 WGU- Intro to bio, unit 5 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
in which phase of the cell cycle does DNA replication take place? - CORRECT
ANSWER -S
Interphase is the part of the cell cycle when the cell _____________. - CORRECT
ANSWER - grows and duplicates its DNA.
In which stage of the cell cycle are new daughter cells formed? - CORRECT ANSWER -
Cytokinesis.
During replication when DNA is being copied, what form would you expect the chromosomes to
be in? - CORRECT ANSWER - Loosely wound.
during cell division, when the chromosomes are being moved around in the cell, what form
would you expect the chromosomes to be in? - CORRECT ANSWER - tightly wound
around the histone proteins as chromosomes.
diploid corn cells have 20 chromosomes. This means that in corn, _____________.
a) 2n=5
b) 2n=10
c)2n= 20
d) 2n= 40 - CORRECT ANSWER - 2n=20
In a dog, 2n= 78. how many chromosomes do most cells in a dog's heart contain? - CORRECT
ANSWER - 78
in goldfish, 2n= 104. how many chromosomes are in a goldfish egg?
, a) 26
b)52
c) 104 - CORRECT ANSWER - 52
A single gamete can grow into a zygote through the process of mitosis: T or F. - CORRECT
ANSWER - false
A zygote grows into an organism through what process? - CORRECT ANSWER - Mitosis
A skin cell would divide to make more skin cells using the process of: - CORRECT
ANSWER - Mitosis
Why must gametes be produced through meiosis? - CORRECT ANSWER - Because
gametes are used for sexual reproduction.
What do tumor suppressor genes do? - CORRECT ANSWER - they prevent uncontrolled
cell division.
what do proto-oncogenes do? - CORRECT ANSWER - they encourage the process of cell
division.
what function most closely describes how both tumor suppressor genes and proto-oncogenes
work? - CORRECT ANSWER - they regulate the cell cycle.
proto-oncogene - CORRECT ANSWER - promotes cell division based on signals that
trigger cell division.
tumor suppressor genes - CORRECT ANSWER - inhibits cell division based of signals
that stop cell division.
ACTUAL Exam Questions and CORRECT
Answers
in which phase of the cell cycle does DNA replication take place? - CORRECT
ANSWER -S
Interphase is the part of the cell cycle when the cell _____________. - CORRECT
ANSWER - grows and duplicates its DNA.
In which stage of the cell cycle are new daughter cells formed? - CORRECT ANSWER -
Cytokinesis.
During replication when DNA is being copied, what form would you expect the chromosomes to
be in? - CORRECT ANSWER - Loosely wound.
during cell division, when the chromosomes are being moved around in the cell, what form
would you expect the chromosomes to be in? - CORRECT ANSWER - tightly wound
around the histone proteins as chromosomes.
diploid corn cells have 20 chromosomes. This means that in corn, _____________.
a) 2n=5
b) 2n=10
c)2n= 20
d) 2n= 40 - CORRECT ANSWER - 2n=20
In a dog, 2n= 78. how many chromosomes do most cells in a dog's heart contain? - CORRECT
ANSWER - 78
in goldfish, 2n= 104. how many chromosomes are in a goldfish egg?
, a) 26
b)52
c) 104 - CORRECT ANSWER - 52
A single gamete can grow into a zygote through the process of mitosis: T or F. - CORRECT
ANSWER - false
A zygote grows into an organism through what process? - CORRECT ANSWER - Mitosis
A skin cell would divide to make more skin cells using the process of: - CORRECT
ANSWER - Mitosis
Why must gametes be produced through meiosis? - CORRECT ANSWER - Because
gametes are used for sexual reproduction.
What do tumor suppressor genes do? - CORRECT ANSWER - they prevent uncontrolled
cell division.
what do proto-oncogenes do? - CORRECT ANSWER - they encourage the process of cell
division.
what function most closely describes how both tumor suppressor genes and proto-oncogenes
work? - CORRECT ANSWER - they regulate the cell cycle.
proto-oncogene - CORRECT ANSWER - promotes cell division based on signals that
trigger cell division.
tumor suppressor genes - CORRECT ANSWER - inhibits cell division based of signals
that stop cell division.
