Genetics Quiz Review

Quiz
•
Science
•
6th - 8th Grade
•
Medium
+1
Standards-aligned
Nicole Spruill
Used 184+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the genotype for a trait BB represent?
Each letter represents the dominant allele inherited from each parent.
Both letters represent the dominant allele inherited from the mother.
Both letters represent the recessive allele inherited from the father.
Each letter represents the recessive allele inherited from each parent.
Tags
NGSS.HS-LS3-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Brown fur (B) is dominant to white fur (b) in rabbits. Which genotype would result from two parents that are homozygous for brown fur?
BB
Bb
b
B
Tags
NGSS.HS-LS3-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In guinea pigs, an allele for rough fur (R) is dominant over an allele for smooth fur (r), and an allele for black coat (B) is dominant over an allele for white fur (b). What would be the genotype of a guinea pig with smooth black fur?
RR, BB
Rr, Bb
rr, bb
rr, BB
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The table lists the characteristics of a pea plant and its offspring.
Which statement is true about the characteristics of the pea plant?
The allele r is dominant over allele R.
The allele a is dominant over allele A.
Both the alleles R and A are dominant in nature.
Both the alleles R and a are dominant in nature.
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is it possible for an organism to have a recessive phenotype for a trait such as white flowers in pea plants?
The organism inherits the recessive allele from one parent.
The organism inherits the recessive allele from both parents.
The organism fails to inherit the alleles for the trait from either parent.
The organism acquires the trait from the environment.
Tags
NGSS.HS-LS3-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does it mean if a trait is dominant?
If the trait is present, then the trait is always expressed.
If the trait is present, then the trait is never expressed.
If the trait is absent, then the organism will not survive.
If the trait is absent, then the organism will survive.
Tags
NGSS.HS-LS3-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Huntington’s disease is a dominant trait that affects brain cells. A student studies a pedigree chart showing the passage of the disease in a family. Huntington’s disease is a dominant trait that affects brain cells. A student studies a pedigree chart showing the passage of the disease in a family.
All the female members of the family are homozygous recessive and have two recessive alleles, one obtained from each parent.
All unaffected members of the family are homozygous recessive and have two recessive alleles, one obtained from each parent.
All the affected members of the family are homozygous dominant and have two dominant alleles, both obtained from one parent.
All the male members of the family are heterozygous and have one dominant and one recessive allele, both obtained from one parent.
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
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