Crosses

Crosses

9th Grade

29 Qs

quiz-placeholder

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Crosses

Crosses

Assessment

Quiz

Biology

9th Grade

Practice Problem

Medium

NGSS
HS-LS3-1, HS-LS3-3, HS-LS3-2

+3

Standards-aligned

Created by

Bobby Bullard

Used 25+ times

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29 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?

0%
25%
50%
75%

Tags

NGSS.HS-LS3-3

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

0 %
25%
50%
75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Two mice heterozygous for red eyes mate. What is the expected genotypic ratio of their offspring?

1 RR: 1 Rr: 1 rr
0 RR: 4 Rr: 0 rr
1 RR: 2 Rr: 1 rr
1 RR: 1 Rr

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

B=brown eyes
b= blue eyes
What is true about these two brothers that have brown eyes:
One has genotype BB the other Bb.

they have same phenotype and genotype
they have different genotypes and phenotypes
they have same phenotype but different genotypes
they have same genotype but different phenotypes

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a genotype?

heterozygous
a trait
Bb
homozygous recessive

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following alleles is homozygous (purebred) recessive?

Tt
tt
TT
t

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

0 %
25%
50%
75%

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