Punnett squares simple

What determines gender in humans? 

• The X & Y chromosome
• chromosome 21
• codominance
• multiple alleles

Tags

NGSS.HS-LS3-1

Which of these is heterozygous? 

• AA
• aa
• Aa

Which of these is homozygous dominant? 

• AA
• aa
• AB

Which of these is homozygous recessive? 

• AA
• aa
• AB

How many SEX chromosomes does a normal human have?

• 2

• 12

• 23

• 46

Long is dominant to short. If we cross two heterozygous longs, how many shorts will we have? 

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

Which type of inheritance is represented in the problem below:

Green peas are dominant to yellow peas. A heterozygous pea crosses with a yellow pea. What percent of the offspring are yellow?

• Simple Dominance

• Codominance

• Incomplete Dominance

• Blood Types

• Sex-Linked

Tags

NGSS.HS-LS3-1

Which type of inheritance is represented in the problem below:

In hamsters, brown and white are equally expressed. A brown hamster crosses with a heterozygous hamster. What are the possible phenotypes of the offspring?

• Simple Dominance

• Codominance

• Incomplete Dominance

• Blood Types

• Sex-Linked

Which type of inheritance is represented in the problem below:

In some breeds of cows, the alleles for coat-colors are red (R) and white (W). A red cow crosses with a white cow. What are the possible phenotypes of the offspring?

• Simple Dominance

• Codominance

• Incomplete Dominance

• Blood Types

• Sex-Linked

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which type of inheritance is represented in the problem below:

Snapdragon flowers can be red, white, or pink. A red flower crosses with a pink flower. What are the possible phenotypes of the offspring?

• Simple Dominance

• Codominance

• Incomplete Dominance

• Blood Types

• Sex-Linked