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Genetics and Variations

Authored by C.J. B

Biology

9th - 12th Grade

Used 1+ times

Genetics and Variations
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26 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the probability that the offspring of a homozygous dominant individual and a homozygous recessive individual will have the dominant phenotype?

25 %
50 %
75 %
100%

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Mendel’s finding that the inheritance of one trait had no effect on the inheritance of another became known as the 

law of dominance.
law of universal inheritance
law of segregation
law of independent assortment

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The law of segregation explains that

alleles of a gene separate from each other during meiosis
different alleles of a gene can never be found in the same organism
each gene of an organism ends up in a different gamete
each gene is found on a different molecule of DNA

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Refer to the illustration above. The genotypic ratio of the F1 generation would be 

1:1:1
1:3:1
3:1
1:2:1

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The phenotype of an organism

represents its genetic composition
shows the traits that are actually expressed
occurs only in dominant pure organisms
cannot be seen

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If an individual has two recessive alleles for the same trait, the individual is said to be

homozygous for the trait
haploid for the trait
heterozygous for the trait
mutated

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Refer to the illustration. The genotype represented in box 2 in the Punnett square would

be homozygous for freckles
have an extra freckles chromosome
be heterozygous for freckles
have freckles chromosomes

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