bio lab quiz 6

Question 1

nucleotides

Answer 1

the repeating units that make up the molecule that is nucleic acid

Question 2

genomes

Answer 2

all of the genes in all of an organisms chromosomes

Question 3

DNA replication

Answer 3

allows DNA to make copies of itself with high fidelity

Question 4

gyrase

Answer 4

an enzyme prevents the strands of DNA from tangling

Question 5

helicase

Answer 5

an enzyme that facilitates unwinding

Question 6

transfer RNA (tRNA)

Answer 6

connectors linking an mRNA codon to a specific amino acid

Question 7

promoters

Answer 7

a specific part of the regulatory region that serves as the starting point of transcription

Question 8

mtDNA and cLDNA

Answer 8

mtDNA - unique mitochondria DNA
clDNA - unique chloroplast DNA

Question 9

pectinase

Answer 9

group of enzymes that breaks down pectin?

Question 10

protein synthesis

Answer 10

the process of building proteins from amino acids

Question 11

what are the full names of DNA and RNA

Answer 11

DNA - deoxyribonucleic acid
RNA - ribonucleic acid

Question 12

nitrogenous bases and sugar phosphate groups present on a DNA model

Answer 12

adenine, guanine, thymine, and cytosine

Question 13

difference between purines and pyrimidines

Answer 13

purines are double ringed (a and g) while pyrimidines are single ringed (t and c)

Question 14

hydrogen bonding of nitrogenous bases

Answer 14

hydrogen bonds between pyrimidines and purines hold the double helix together in complementary base pairs

Question 15

histones

Answer 15

the protein that DNA is tightly coiled around