Exercises

Question 1

an autosomal recessive condition whereby the synthesis
of melanin pigment is reduced in parts like the skin, hair,
and eyes.

Answer 1

Tyrosinase-positive oculocutaneous albinism (Type II)

Question 2

The mutated gene in Tyrosinase-positive oculocutaneous albinism is the ____ under chromosome ____

Answer 2

OCA2 gene or OCA2
melanosomal transmembrane protein gene; 15q

Question 3

Individuals with Tyrosinase-positive oculocutaneous albinism (Type II) have visual
anomalies such as

Answer 3

reduced acuity and nystagmus.

Question 4

the
mutated gene which is responsible for the wrinkled
phenotype of the pea plant seeds.

Answer 4

SBE1 gene (starch-branching enzyme 1 gene)

Question 5

SBE1 gene is responsible for ___ during its development

Answer 5

amylopectin synthesis

Question 6

SBE1 gene encodes for the enzyme called ____. However, the ____ mitigates this gene from producing the
said enzyme.

Answer 6

starch branching enzyme; insertion
mutation

Question 7

Sickle red blood
cell is caused by a mutation in the two copies of the
individual’s ____

Answer 7

HBB gene (Hemoglobin subunit beta)

Question 8

The protein that is affected by the mutation of HBB gene

Answer 8

Hemoglobin

Question 9

The sickle cell gene is located in the ____

Answer 9

autosomes.