INCOMPLETE DOMINANCE & CODOMINANCE

Question 1

is any pattern of inheritance in which traits do not segregate in accordance with Mendel’s laws.

Answer 1

NON-MENDELIAN INHERITANCE

Question 2

It is a form of intermediate inheritance in which one allele does not completely dominate another allele, resulting in a NEW PHENOTYPE.

Answer 2

INCOMPLETE DOMINANCE

Question 3

The term ”incomplete dominance” was proposed by the German botanist,

Answer 3

CARL CORRENS

Question 4

Both alleles are EXPRESSED EQUALLY in the phenotype of the heterozygote

Answer 4

CODOMINANCE

Question 5

is a protein- bound to a sugar molecule found on the surface of our red blood cells

Answer 5

ANTIGEN

Question 6

What is the key difference between incomplete dominance and codominance?

a) Incomplete dominance results in blending of traits, while codominance exhibits equal expression.

b) Incomplete dominance results in equal expression, while codominance exhibits blending.

c) Both result in identical phenotypes.

d) Neither exhibits a phenotypic difference.

Answer 6

a) Incomplete dominance results in blending of traits, while codominance exhibits equal expression.

Question 7

If you cross a red-flowered plant (RR) with a white-flowered plant (WW), and the offspring have pink flowers (RW), what type of inheritance is this?

Answer 7

INCOMPLETE DOMINANCE

Question 8

In a breed of chickens, feather color is determined by two alleles, black (B) and white (W). If a black chicken (BB) is crossed with a white chicken (WW), what will be the phenotype of the offspring?

a) All black feathers

b) All white feathers

c) Gray feathers

d) Half black and half white feathers

Answer 8

c) Gray feathers

Question 9

In the ABO blood group system, individuals with genotype IAIA have type A blood, those with genotype IBIB have type B blood, and those with genotype IAIB have type AB blood. What type of inheritance pattern is exhibited by the ABO blood groups?

a) Incomplete dominance

b) Codominance

c) Simple Mendelian dominance

d) Recessive inheritance

Answer 9

b) Codominance

Question 10

5. In a population of flowers, individuals with genotype RR have red petals, those with genotype WW have white petals, and those with genotype RW have pink petals. What type of inheritance pattern is exhibited in this population?

a) Incomplete dominance

b) Codominance

c) Simple Mendelian
dominance

d) Recessive inheritance

Answer 10

a) Incomplete dominance