What principle states different traits separate without influencing each other’s inheritance?

principle of independent assortment

In P generation, a tall plant crossed with a short. Short plants reappeared in the F2 because

alleles for both segregated when the F1 plants made gametes.

Gregor Mendel removed the male parts from the flowers of some plants in order to

control crosses between plants.

If a pea plant’s alleles for height are tt, what is true of its parents?

Both parents contributed a recessive allele.

Rosalind Franklin contributed to the understanding of DNA by

producing images of DNA molecules using X-rays.

A tall plant (TT) is crossed with a short plant (tt). If the tall F1 pea plants self-pollinate,

the offspring can be tall or short.

When Gregor Mendel crossed tall plants with short plants, why could he not observe segregation?

Alleles in the F1 must be Tt to have height variety in F2.

The principles of probability can be used to

predict the traits of the offspring of genetic crosses.

If a pea plant has a recessive allele for green peas, it will produce

green peas if it doesnt have dominant allele for yellow peas

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Heredity 2

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Questions 15

Answers

1
The different forms of a gene are called
pollution.
alleles.
dihybrid crosses.
traits.
2
What principle states different traits separate without influencing each other’s inheritance?
principle of dominance
principle of independent assortment
principle of segregation
Principal Bergeron
3
In P generation, a tall plant crossed with a short. Short plants reappeared in the F2 because
the allele for shortness becomes pink in the F2 generation.
alleles for both segregated when the F1 plants made gametes.
the allele for shortness becomes extinct in F2 generation.
4
When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited
one hundred alleles from each parent.
one allele from each parent.
four alleles from each parent.
zero alleles from each parent.
5
Gregor Mendel removed the male parts from the flowers of some plants in order to
stimulate student knowledge.
prevent cross-pollination.
prevent transformers from forming.
control crosses between plants.
6
Organisms that have two identical alleles for a particular trait are said to be
homozygous.
heterozygous.
hybrid.
dominant.
7
If a pea plant’s alleles for height are tt, what is true of its parents?
Both parents contributed a dominant allele.
Both parents were tall.
Both parents contributed a recessive allele.
Both parents were green.
8
Rosalind Franklin contributed to the understanding of DNA by
figuring out that DNA strands form a single helix.
conducting experiments showed which nucleotides are pink.
finding that DNA was nucleic acid made up of chocolate.
producing images of DNA molecules using X-rays.
9
A tall plant (TT) is crossed with a short plant (tt). If the tall F1 pea plants self-pollinate,
all of the offspring will not grow.
the offspring will be of medium height.
all of the offspring will be short.
the offspring can be tall or short.
10
When you flip a coin, what is the probability that it will come up tails?
1/2
1/8
1/4
1
11
Gregor Mendel’s principles of genetics apply to
students only.
pea plants only.
all organisms.
plants only.
12
When Gregor Mendel crossed tall plants with short plants, why could he not observe segregation?
Alleles in the F1 must be Tt to have height variety in F2.
Alleles segregate only in the F16 generation.
Alleles for height do not segregate in the F2.
13
A heterozygous tall pea plant is crossed with a short plant. The probability of a tall F1 plant
is 50%.
is 25%.
is 75%
is 100%
14
The principles of probability can be used to
determine which species should be used in genetic crosses.
predict the traits of the offspring of genetic crosses.
decide which organisms are best to use in genetic crosses.
determine the actual outcomes of Biology classes.
15
If a pea plant has a recessive allele for green peas, it will produce
green peas if it also has a dominant allele for yellow peas.
three green peas and three yellow peas.
green peas if it doesnt have dominant allele for yellow peas
plant

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