CH 9 Molec Biology

Question 1

Diploid cells:

Answer 1

These cells have chromosomes that are paired. Diploid cells are commonly known as somatic cells and make up all tissues throughout the body.

Question 2

Haploid cells:

Answer 2

These cells have single chromosomes that are not paired. The only haploid cells are the ovum and spermatid

Question 3

DNA, each nucleotide consists

Answer 3

a sugar (deoxyribose),
a nitrogen-containing base attached to the sugar, and
a phosphate group.

Question 4

nucleotides in DNA

Answer 4

adenine (A),
guanine (G),
cytosine (C), and
thymine (T).
phosphate group–sugar–phosphate group–sugar– is referred to as the backbone of DNA

Question 5

nitrogenous bases

Answer 5

rungs of the ladder, with the base of the nucleotide on one strand forming a bond with the base of the nucleotide of the other strand

Question 6

polymerase chain reaction (PCR) is used to:

Answer 6

clone DNA

Question 7

polymerase chain reaction (PCR) is used to:

Answer 7

clone DNA

Question 8

western blot

Answer 8

Proteins are separated by size using gel electrophoresis, then transferred to a membrane and probed with specific antibodies to visualize them.

Question 9

procedures determines the level of mRNA transcripts in a sample

Answer 9

quantitative RT-PCR

Question 10

weakest bonds in DNA

Answer 10

base-base