Lecture 7

Question 1

What direct the formation of an organism/

Answer 1

the 4 nucleotides

Question 2

What specifiy the linear order of amino acids in each protein?

Answer 2

nucleotides

Question 3

What determine biological functions a cell

Answer 3

properties of proteins

Question 4

Does DNA control protein synthesis directly/

Answer 4

No

Question 5

What is the intermediary?

Answer 5

RNA

Question 6

What is copied into RNA and what is it called when this happens?

Answer 6

a gene, transcription

Question 7

What is used as a template to direct the synthesis of protein?

Answer 7

RNA in translation

Question 8

linear polymers

Answer 8

RNA and DNA

Question 9

What is made of nucleiotides connected by phosphodiester bonds?

Answer 9

RNA and DNA

Question 10

What is single stranded?

Answer 10

RNA

Question 11

What does RNA have instead of deoxyribonucleotides?

Answer 11

ribonucleotides

Question 12

RNA has…. instead of Thymine

Answer 12

Uracil

Question 13

What can fold inot compelx 3 dimensional structures allowing some RNAs to have precids structural anc catalytic functions

Answer 13

RNA

Question 14

Ribose has an OH, deoxyribose has an …

Answer 14

H

Question 15

Uracil has a H…. thymine has a

Answer 15

methyl

Question 16

mRNAs function

Answer 16

messenger RNAs, code for proteins

Question 17

rRNAs function

Answer 17

ribosomeal RNAs, form the basic structure of the ribosome and catalyze protein syntehsis

Question 18

tRNA

Answer 18

transfer RNAs, central to protein synthesis as a daptors btw mRNA and amino acids

Question 19

snRNAs

Answer 19

small nucleolar RNAs, help to process and chmicall modify rRNAs

Question 20

miRNAs

Answer 20

microRNAs, regulate gene expression by blocking translation of specific mRNAs and cause their dgradation

Question 21

siRNas

Answer 21

small interferenig RNAs, turn off gene expression by direction the degradation of selective mRNAs and the establishment of compact chromatin structures

Question 22

direct protein synthesis (3-5% of tal celluarl RNA) Coding RNAs

Answer 22

messenger RNA

Question 23

What is many genes final product

Answer 23

RNA

Question 24

WHat does non coding RNa serve as

Answer 24

enzymatic and structural components for many biological processes

Question 25

the core of ribosome and catalyze protein synthesis

Answer 25

ribosomal RNA

Question 26

form the core of ribosomes and catalyze proteins synthesis

Answer 26

ribosomeal RNA

Question 27

form adaptors that select and hold amnio acids during protine synthesis

Answer 27

transfer RNA

Question 28

direct the spicing of pre mRNA to form mRNA

Answer 28

small nuclear RNA

Question 29

regulate eukaryotic gene expression by degrading select m RNA

Answer 29

small interfering RNA

Question 30

regulate gene expression by blocking translation of sleecive mRNA

Answer 30

micro RNA

Question 31

multi subutnit complex

Answer 31

bacterial RNA polymerase (RNA pol)

Question 32

what is holoenzyme

Answer 32

a2bb’signma

Question 33

What Does holoenzyme catalyze?

Answer 33

the formation of phosphodiester bonds that link nucleotides

Question 34

What does RNA pol have?

Answer 34

proof-reading nuclease