Question 1

Plants have special groups of self-renewing cells called

Accepted Answer

A) root cells. 
B) chloroplasts. 
C) cast cells. 
D) meristems. 
A) root cells. 
B) chloroplasts. 
C) cast cells. 
D) meristems.

Question 2

The finding that homeotic genes are present in both mammals and insects indicates that these genes must

Accepted Answer

A) control the same traits. 
B) be on the same chromosomes. 
C) have arisen very early in the evolutionary history of animals. 
D) have developed independently and simultaneously. 
A) control the same traits. 
B) be on the same chromosomes. 
C) have arisen very early in the evolutionary history of animals. 
D) have developed independently and simultaneously.

Question 3

Egg cells were combined with this cell type to form the cloned sheep named Dolly.

Accepted Answer

A) skin cells 
B) sperm cells 
C) mucous membrane cells 
D) mammary cells 
A) skin cells 
B) sperm cells 
C) mucous membrane cells 
D) mammary cells

Question 4

How did Briggs and King move the nuclei between cells?

Accepted Answer

A) with a glass pipet 
B) with a dissecting needle 
C) with a scalpel 
D) with forceps 
A) with a glass pipet 
B) with a dissecting needle 
C) with a scalpel 
D) with forceps

Question 5

What was the most significant research finding that resulted from the successful cloning of Dolly?

Accepted Answer

A) The key to cloning success is to pick a donor cell from very early in development. 
B) Cloned animals are capable of producing normal offspring. 
C) The nucleus of a fully-differentiated cell can be reprogrammed to be totipotent. 
D) Genetic imprinting, which occurs in adult reproductive tissue, can take months for sperm and years for eggs. 
A) The key to cloning success is to pick a donor cell from very early in development. 
B) Cloned animals are capable of producing normal offspring. 
C) The nucleus of a fully-differentiated cell can be reprogrammed to be totipotent. 
D) Genetic imprinting, which occurs in adult reproductive tissue, can take months for sperm and years for eggs.

Question 6

Caenorhabditis elegans is an organism with exactly 959 somatic cells.This organism is a(n)

Accepted Answer

A) fruit fly. 
B) earthworm. 
C) nematode. 
D) angiosperm. 
A) fruit fly. 
B) earthworm. 
C) nematode. 
D) angiosperm.

Exam 19: Cellular Mechanisms of Development

Plants have special groups of self-renewing cells called

The finding that homeotic genes are present in both mammals and insects indicates that these genes must

Egg cells were combined with this cell type to form the cloned sheep named Dolly.

How did Briggs and King move the nuclei between cells?

What was the most significant research finding that resulted from the successful cloning of Dolly?

Caenorhabditis elegans is an organism with exactly 959 somatic cells.This organism is a(n)

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