HS Int Sci Genetics

HS Int Sci Genetics

9th - 12th Grade

24 Qs

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HS Int Sci Genetics

HS Int Sci Genetics

Assessment

Quiz

Science

9th - 12th Grade

Hard

Created by

Kandi Follis

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24 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A generation of plants has a phenotypic ratio of 9:3:3:1. Which of these identifies the process that explains the results of this cross?

gene flow

crossing over

rule of multiple alleles

law of independent assortment

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In human genetics, brown eyes (B) are dominant over blue eyes (b). A brown-eyed man is heterogeneous (Bb). He marries a blue-eyed woman. What is the probability of their child having blue eyes?

100%

75%

50%

25%

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A female is homozygous for a recessive trait (rr), while the male is homozygous dominant for the same trait (RR). What percentage of their offspring would be expected to exhibit the dominant trait?

0 %

25%

50%

100%

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a plant with red flowers (CR CR) is crossed with a plant that has white flowers (CCw), the resulting offspring has pink flowers (CR Cw ). What mode of inheritance is observed?

incomplete dominance

complete dominance

codominance

sex-linked

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement best describes the relationship between an allele and a gene?


An allele is a variation of a gene that can be expressed as a phenotype.


An allele is the part of a gene that attaches to messenger RNA molecules.

An allele is a segment of a DNA molecule that controls replication of a gene.

An allele is the primary protein made by a gene found in a developing embryo

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The genetic material of two different individuals of the same species is analyzed. One individual has brown eyes. The other has blue eyes. Which characteristic for eye color would be the same for both individuals?

the allele

the DNA sequence

the amount of pigment

the location of the gene

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The diagram shows a Punnett square of possible blood types for the offspring of two parents. Human blood type is an example of which inheritance pattern?

recessive

sex-linked

codominant

incomplete dominance

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