L.8.2b.2

Quiz
•
Biology
•
9th - 12th Grade
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The ability to roll the tongue is thought to be controlled by a dominant allele (R). What percent of offspring from two heterozygous (Rr) parents are most likely to have the tongue-rolling trait?
25%
50%
75%
100%
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
NGSS.HS-LS3-3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a plant that is homozygous tall and wrinkled is crossed with a short, wrinkled plant, which percentage of genotypes would most likely be found in the first-generation offspring?
50% TTss, 50% ttSS
100% TtSs
100% Ttss
50% TtSS, 50% ttSS
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This Punnett square shows the results of a cross between a tall (Tt) corn plant and a short (tt) corn plant. According to this information, what percent of the offspring were tall?
0%
25%
50%
75%
Tags
NGSS.HS-LS3-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The birds shown above are sisters from the same set of parents. In this species of bird, long beak (L) is dominant over short beak (l). They are the only surviving offspring of their parents, and they do not necessarily represent the expected ratio of phenotypes. Which cross shown below could not represent the mating of thier parents?
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a black mouse that is homozygous for coat color (BB) is crossed with a white mouse that is homozygous for coat color (bb), all of the F1 generation offspring have black coats.
What are the expected genotypes and phenotypes of coat color in the F2 generation?
All F2 mice have BB genotypes and black phenotypes.
All F2 mice have bb genotypes and white phenotypes.
The genotypes of the F2 mice are 25% BB, 50% Bb, and 25% bb. The phenotypes are 75% black and 25% white.
The genotypes of the F2 mice are 50% BB and 50% bb. The phenotypes are 50% black and 50% white.
Tags
NGSS.HS-LS3-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In cattle the allele for cloven hooves (H) is dominant over the allele for mute-foot hooves (h). The phenotype for each trait is shown in this picture.
What is the probability of cloven hooves in the offspring of parents that are heterozygous for the trait?
25%
50%
75%
100%
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tomato plants usually have hairy stems. Hairless stems are present in tomato plants that are homozygous recessive for this trait. If the stems characteristics are determined by a single gene, what is the expected outcome of crossing two plants that are heterozygous for hairy stems?
75% hairy stems: 25% hairless stems
100% hairy stems
100% hairless stems
50% hairy stems: 50% hairless stems
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
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