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ISAT Practice #20: Glencoe Science: Life Science
Test Description: ISAT Practice #20: Glencoe Science: Life Science
Instructions: Answer all questions to get your test result.
1) What happens during mitosis?
A
A cell's DNA is copied.
B
A cell's organelles duplicate.
C
A cell's chromosomes duplicate.
D
A cell's nucleus divides.
2) What usually happens right after a cell's nucleus divides?
A
It grows and prepares for mitosis.
B
Its DNA is copied.
C
Its other organelles divide.
D
It splits into two new cells.
3) All of these are an example of asexual reproduction except ___.
A
a sea star regenerating a new arm
B
a potato sprouting new plants from its buds
C
a mother dog giving birth
D
a strawberry plant forming new plants with runners
4) How many sex cells result from both meiosis I and meiosis II?
A
4
B
2
C
3
D
1
5) Cells that have half the number of chromosomes as body cells are called ___.
A
polyploid
B
haploid
C
zygotes
D
diploid
6) If a sex cell has 12 chromosomes, how many chromosomes will there be after fertilization?
A
48
B
5
C
24
D
12
7) A pure bred red-flowering plant and a pure bred white-flowering plant cross. The offspring produce pink flowers. What pattern of inheritance is this?
A
complete dominance
B
incomplete dominance
C
multiple alleles
D
polygenic inheritance
8) Blood type in humans is an example of ___.
A
polygenic inheitance
B
multiple alleles
C
sex-linked inheritance
D
incomplete dominance
9) An allele carried on a Y chromosome will affect ___.
A
none of the offspring
B
some of the male and female offspring
C
all of the female offspring
D
all of the male offspring
10) What must be true of a person with cystic fibrosis?
A
The mother was a carrier for cystic fibrosis.
B
At least one parent was a carrier for cystic fibrosis.
C
One of teh parents had the condition cystic fibrosis.
D
Both parents had at least one allele for cystic fibrosis.
*select an answer for all questions
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