Which of the following statements are correct?

I) Hormones often regulate homeostasis through antagonistic functions.

II) Hormones of the same chemical class usually have the same function.

III) Hormones are secreted by specialized cells usually located in exocrine glands.

IV) Hormones are often regulated through feedback loops.

#Question id: 2806

#Unit 2. Cellular Organization

Pseudogenes arise from the action of an enzyme

#Question id: 2807

#Unit 2. Cellular Organization

Huntington’s disease is an example of

a. an autosomal recessive disorder.    b. an autosomal dominant disorder.

c. a sex linked recessive disorder.      d. a sex linked dominant disorder.

#Question id: 2808

#Unit 2. Cellular Organization

A microsatellite is a type of polymorphism that

a. results from the change of a single nucleotide.

b. changes the recognition sequence for a restriction enzyme.

c. results from a variable number of repetitive sequences.

d. results from a chromosomal inversion.

#Question id: 2809

#Unit 2. Cellular Organization

In the human genome, one centimorgan or a 1 percent recombination frequency represents, on average, a distance of about

#Question id: 2810

#Unit 2. Cellular Organization

Which of the following steps is required to generate a knockout mouse?

a. microinjection of DNA into the pronucleus of a fertilized mouse egg

b. introduction of DNA into mouse embryonic stem cells

c. selection for cells containing the gene targeted insertion

d. expression of Cre protein during embryonic development

#Question id: 2811

#Unit 2. Cellular Organization

RNA interference is a method for inhibiting the function of specific genes using

a. single-stranded DNA.                     

b. double-stranded DNA.

c. single-stranded RNA.                     

d. double-stranded RNA.