Question 1

Which of the following statements about human chromosomes are true? Please select all that apply.

Accepted Answer

A)  Humans have 46 pairs of chromosomes 
B)  The X chromosome is larger than the Y chromosome 
C)  Chromosome 7 is smaller than chromosome 15 
D)  The human diploid number is 23

Question 2

Which genome features are generally found in eukaryotes but not in bacteria? Please select all that apply.

Accepted Answer

A)  Telomeres 
B)  Plasmids 
C)  Chromosomes 
D)  Centromeres

Question 3

Polyacrylamide gel electrophoresis (PAGE) separates proteins based on differences in which of the following? Please select all that apply.

Accepted Answer

A)  Their size 
B)  Their pH 
C)  Their GC% 
D)  Their charge

Question 4

Sequence differences between homologues are greater than between sister chromatids.

Accepted Answer

A) True 
 B)False

Question 5

A random base change is less likely to affect phenotype in humans than in bacteria. Why? Please select all that apply.

Accepted Answer

A)  Humans have two copies of a gene whereas bacteria have one copy. 
B)  A higher percentage of the human genome consists of genes than the bacterial genome. 
C)  Less of the human genome is functional than the bacterial genome. 
D)  A third base change is more likely to occur in bacteria than in humans.

Question 6

Which of the following features is characteristic of heterochromatin

Accepted Answer

A)  Heterochromatin is densely packed 
B)  Heterochromatin appears pale on stained chromosomes 
C)  The majority of active genes are found in heterochromatic regions 
D)  Chromosomal proteins are not found in heterochromatin

Question 7

Match the missing words in the following phrase. Alternative splicing refers to the process where multiple [A] are produced from one [B]. This process is most common in [C], occurs less frequently in [D], and is rare in [E].

Accepted Answer

The answer of Match the missing words in the following...

Exam 3: Genome Structure, Organization, and Variation