Recitation: Decoding the Flu

Question 1

the team contracted a flu viruses in which the … are worse than usual and even … are getting severely ill

Answer 1

symptoms; healthy adults

Question 2

none of the … protected them against the virus

Answer 2

vaccinations

Question 3

the … protein helps the flu virus infect cells and the structure of this protein can … in different … `

Answer 3

hemagglutinin; vary; virus strains

Question 4

human chromosomes: … to … million base pairs

Answer 4

50; 250

Question 5

average gene: … base pairs

Answer 5

3000

Question 6

less than …% of DNA codes for proteins

Answer 6

5

Question 7

a gene is a short stretch of

Answer 7

DNA on chromosome

Question 8

a gene has two parts: … region and … region

Answer 8

regulatory; coding

Question 9

DNA: information in genes used to

Answer 9

make proteins

Question 10

two stages:
1. …
regulatory region has a binding site for …

Answer 10

transcription; RNA polymerase

Question 11

transcription is similar to … but different because it copies only … of the two strands and it makes a copy as … not …

Answer 11

DNA replication; one; RNA; DNA

Question 12

2nd stage: …

• … RNA carries the nucleotide code for the protein to be made
• … RNA molecules “interpret” the nucleotide code
• each … carries an … and an … complementary to a codon in the mRNA
• … use tRNA to “read” … and assemble the … they carry into a …

Answer 12

translation; messenger; transfer; tRNA; amino acid; anticodon; ribosomes; messenger RNA; amino acids

Question 13

not all of mRNA molecule codes for …

Answer 13

protein

Question 14

need … to identify where coding region begins and ends: … is the start codon and codes for …
…, …, and … are the stop codons

Answer 14

punctuation; AUG; methionine; UAA; UAG; UGA

Question 15

bases in DNA/RNA form

Answer 15

triplet code (codons)

Question 16

the virus that the team contracted probably had a mutation that results in a different but still functional version of the

Answer 16

HA gene