Bio 6D - Compare genetic variations in plants and animal (HOLT Ch. 8)
Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
|
|
|
1.
|
The
passing of traits from parents to offspring is called a. | genetics. | c. | development. | b. | heredity. | d. | maturation. | | | | |
|
|
|
2.
|
The
scientific study of heredity is called a. | meiosis | c. | genetics | b. | crossing-over | d. | pollination | | | | |
|
|
|
3.
|
The
“father” of genetics was a. | A. Knight | c. | Gregor Mendel. | b. | Hans
Krebs. | d. | None of the
above | | | | |
|
|
|
4.
|
Mendel obtained his P generation by allowing the plants to a. | self-pollinate. | c. | assort
independently. | b. | cross-pollinate. | d. | segregate. | | | | |
|
|
|
5.
|
Step
1 of Mendel's garden pea experiment, allowing each variety of garden pea to self-pollinate for
several generations, produced the a. | F1 generation. | c. | P generation. | b. | F2
generation. | d. | P1
generation. | | | | |
|
|
|
6.
|
F2 : F1 :: a. | P : F1 | c. | F1 : P. | b. | F1 :
F2 | d. | dominant trait :
recessive trait | | | | |
|
|
|
7.
|
Mendel's law of segregation states that a. | pairs of alleles
are dependent on one another when separation occurs during gamete
formation. | b. | pairs of alleles separate independently of one another after
gamete formation. | c. | each pair of alleles remains together when gametes are
formed. | d. | the two alleles for a trait separate when gametes are
formed. | | |
|
|
|
8.
|
Garden peas a. | are difficult to grow. | b. | mature
quickly. | c. | produce few offspring. | d. | are not good
subjects for studying heredity. | | |
|
|
|
9.
|
If an
individual possesses two recessive alleles for the same trait, the individual is said to
be a. | homozygous for
the trait. | c. | heterozygous for
the trait. | b. | haploid for the trait. | d. | mutated. | | | | |
|
|
|
10.
|
A
genetic trait that appears in every generation of offspring is called a. | dominant. | c. | recessive. | b. | phenotypic. | d. | superior. | | | | |
|
|
|
11.
|
Tallness (T) is dominant to shortness (t) in pea plants. Which of the
following represents a genotype of a pea plant that is heterozygous for tallness?
|
|
|
12.
|
Mendel's finding that the inheritance of one trait had no effect on the inheritance of
another became known as the a. | law of dominance. | c. | law of separate convenience. | b. | law of universal
inheritance. | d. | law of
independent assortment. | | | | |
|
|
|
13.
|
A 3:1
ratio of tall to short pea plants appearing in the F2 generation lends support to the law
of a. | recessiveness. | c. | mutation. | b. | segregation. | d. | crossing-over. | | | | |
|
|
|
14.
|
The
law of segregation states that a. | alleles of a gene separate from each other during
meiosis. | b. | different alleles of a gene can never be found in the same
organism. | c. | each gene of an organism ends up in a different
gamete. | d. | each gene is found on a different molecule of
DNA. | | |
|
|
|
In rabbits, black fur (B) is dominant to brown fur (b).
Consider the following cross between two rabbits.
|
|
|
15.
|
Refer
to the illustration above. The device shown, which is used to determine the probable outcome of
genetic crosses, is called a a. | Mendelian box. | c. | genetic graph. | b. | Punnett
square. | d. | phenotypic
paradox. | | | | |
|
|
|
16.
|
Refer
to the illustration above. Both of the parents in the cross are a. | black. | c. | homozygous
dominant. | b. | brown. | d. | homozygous recessive. | | | | |
|
|
|
17.
|
Refer
to the illustration above. The genotypic ratio of the F1 generation would be a. | 1:1 | c. | 1:3. | b. | 3:1. | d. | 1:2:1. | | | | |
|
|
|
18.
|
What
is the expected phenotypic ratio resulting from a homozygous dominant ´ heterozygous
monohybrid cross?
|
|
|
19.
|
If a
characteristic is sex-linked, it a. | occurs most commonly in males. | c. | can never occur in females. | b. | occurs only in
females. | d. | is always
fatal. | | | | |
|
|
|
20.
|
Since
the allele for colorblindness is located on the X chromosome, colorblindness a. | cannot be
inherited. | c. | is
sex-linked. | b. | occurs only in adults. | d. | None of the above | | | | |
|
|
|
21.
|
What
would be the blood type of a person who inherited an A allele from one parent and an O
allele from the other? a. | type A | c. | type AB | b. | type
B | d. | type
O | | | | |
|
|
|
22.
|
A
change in a gene due to damage or being copied incorrectly is called a. | evolution. | c. | segregation. | b. | meiosis. | d. | a mutation. | | | | |
|
|
|
23.
|
Both
sickle-cell anemia and hemophilia a. | are caused by genes coding for defective
protein. | b. | are seen in homozygous dominant
individuals. | c. | provide resistance to malaria
infections. | d. | are extremely common throughout the
world. | | |
|
|
|
24.
|
Genetic counseling is a process that a. | helps identify
parents at risk for having children with genetic defects. | b. | assists parents
in deciding whether or not to have children. | c. | uses a family
pedigree. | d. | All of the above | | |
|
|
|
25.
|
Which
of the following is an example of gene technology? a. | A genetic
counselor studies a pedigree. | b. | A student studies the colors of flowers in pea
plants. | c. | A geneticist explains the inheritance of albinism using a
Punnett square. | d. | A physician transfers a normal gene into the DNA of a person
with a genetic disease. | | |
|