Genes and Genetics

when both ttraits are expressed or seen in the phenotype.

• Codominance

• Punnett squares

• Complete dominance

• Incomplete dominance

Which of the following is true about blood type O?

• It contains antigen A only.

• It contains antigen B only.

• It contains both antigen A and antigen B.

• It doesn’t contain antigen A or antigen B.

Which of the following refers to a complete dominant cross?

• One allele completely masks the effect of another allele.

• The two alleles are equally seen in the heterozygous genotype.

• The two alleles are blended in the heterozygous genotype.

• Neither allele is seen in the phenotypes.

In the image above, the trait for flower color is controlled by codominance. R codes for red flowers and W codes for white flowers. Which of the following correctly reports the phenotypes?

• 100% red flowers

• 50% white flowers and 50% pink flowers

• 50% red flowers and 50% red and white flowers

• 50% white flowers and 50% red flowers

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

____________ are proteins that are found on the surface of some red blood cells.

• genes

• alleles

• antigens

• immunoglobins

Which of the following genotypes code for the blood type AB?

• AB

• A

• B

• O

Which of the following codes for blood type O?

• AA

• AO

• BO

• OO

Tags

NGSS.MS-LS4-4

What antibodies can be found when someone has blood type A?

• none

• A

• B

• A and B

which blood type is the universal donor (all people can receive it)?

• O
• AB
• A
• B

Which of the following is true about blood type O?

• It contains antigen A only.

• It contains antigen B only.

• It contains both antigen A and antigen B.

• It doesn’t contain antigen A or antigen B.