Question

1-Someone who is heterozygous for a recessive genetic illness is said to be ________.

Select one:

a.

epistatic

b. pleiotropic

c. a carrier

d.

allelic

2- A group of organs in the body that have a common function make up a(n) organism

Select one:

True

False

3- The inner layer of skin that contains blood vessels, nerves, sweat glands, oil glands, and hair follicles is called the dermis

Select one:

True

False

4-Which genetic condition can be described as the inheritance of the heterozygous phenotype, which is expressed as an intermediate between the dominant and recessive alleles?

Select one:

a.

codominance

b.

epistasis

c.

incomplete dominance

d. dominance

5-Most of the energy used by the cell is converted to ATP in ________.

Select one:

a. Golgi complexes

b.

lysosomes

c.

mitochondria

d. nuclei

6-Specialized cells found at the base of the epidermis that produce pigments that help give skin its color are called melanocytes

Select one:

True

False

7-If two chromosomes have the same genes for the same trait, they are said to be ________.

Select one:

a.

polypeptides

b.

autosomal

c.

Traits

d.

homologues

8-The movement of water through a selectively permeable membrane from areas of high concentration to areas of low concentration until equilibrium is reached can be described as

Select one:

a.

diffusion

b. All of the above are true.

c. osmosis

d. active transport

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Provided by Rovi

10-When one gene causes multiple effects, the condition is called ________.

Select one:

a.

pleiotropy

b. incomplete dominance

c.

multiple alleles

d.

codominance

Answer 1

1. c, a carrier

A carrier has one dominant allele and one recessive allele and so is heterozygous.

2. False

A group of organs performing a common function make up an organ system. Group of organ systems then make an organism.

3. True.

The dermis is a layer of skin between the epidermis and subcutaneous tissues which contains blood vessels, nerves, sweat glands, oil glands, and hair follicles.

4. c, incomplete dominance

Incomplete dominance results in an intermediate phenotype relative to the parental phenotypes.

5.c, mitochondria

Mitochondria are the sites of ATP production mainly through electron transport chain.

6. True

Melanocytes produce melanin by the process of melanogenesis.

7. d, homologues

Homologous chromosomes have the same set of genes for the same trait.

8. c, osmosis

Osmosis is a form of passive transport which requires a semi permeable membrane.

10. a, pleiotropy

In this case, phenotypic expression of a gene affects more than one character or trait by affecting different pathways.