AnswersFirst Semester BiologyCellular Respiration

Cellular Respiration — Unit test Answers

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Which best describes meiosis?

A
It produces cells that are identical to the original cell.
B
It is responsible for the replacement of damaged skin cells.
C
It is responsible for growth of the organism.
D
It produces male and female sex cells.
5

Which three processes are methods of genetic recombination?

A
natural selection, crossing over, and independent assortment
B
crossing over, independent assortment, and fertilization
C
independent assortment, fertilization, and natural selection
D
fertilization, natural selection, and crossing over
6

Which best illustrates how Gregor Mendel used creativity that lead to scientific discovery?

A
He noticed that traits were passed on from parents to offspring.
B
He chose a parent generation and carefully studied its traits.
C
He used pea plants to study the patterns of heredity.
D
He observed how specific traits were passed from parent to offspring.
7

In his study of pea plants, Gregor Mendel used which method to produce offspring?

A
cross-pollination, by using parents that had identical traits
B
cross-pollination, by using parents that had different traits
C
self-pollination, by using one parent
D
random pollination, by using both identical- and different-trait matings
9

Which consist of sperm cells and egg cells?

A
gametes
B
tetrads
C
diploids
D
chromosomes
10

How many chromosomes does a child inherit from his or her parents?

A
23 from the mother and 23 from the father
B
46 from the mother
C
46 from the father
D
46 from the mother and 46 from the father
12

Which discovery did Gregor Mendel make?

A
Traits are inherited independently of each other.
B
Traits are inherited as a tetrad.
C
Traits are inherited as homologous pairs.
D
Traits are inherited as a set, from one parent.
13

Why is meiosis important for organisms?

A
It allows for genetic variation among organisms.
B
It determines which genes are dominant and which are recessive.
C
It produces genetically identical cells.
D
It provides a means of asexual reproduction.

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