Incomplete and Co-dominance Practice

Incomplete and Co-dominance Practice

9th Grade

10 Qs

quiz-placeholder

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Incomplete and Co-dominance Practice

Incomplete and Co-dominance Practice

Assessment

Quiz

Biology

9th Grade

Medium

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

Standards-aligned

Created by

Shalonda Hawkins

Used 4+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Incomplete dominance or co-dominance?
This type of inheritance pattern is a MIXTURE of both traits.

incomplete dominance
co-dominance

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

A roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan steer mate together?

4: Orange and White
1: Orange : 1 White
2 Orange: 2 Orange and White: 0 White
1: Orange: 2 Orange and White: 1 White

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Ratios:
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be:

all black
all white
all gray
speckled black and white

Tags

NGSS.HS-LS3-1

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

This is an example of ___________.

 Incomplete Dominance
 Codominance

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In mice. coat color is incompletely dominant. Black and white are homozygous. Brown mice are heterozygous.


What is the genotype for a brown mouse?

BB

Bb

bb

Tags

NGSS.HS-LS3-2

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?

0%
25%
50%
100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A plant shows incomplete dominance in size. A tall plant (TT) is crossed with a medium plant (TS). What fraction of plants will also be tall?

100 %
75%
50%
25%

Tags

NGSS.HS-LS3-3

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