Lecture 7 Flashcards Preview

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Flashcards in Lecture 7 Deck (34):
1

What direct the formation of an organism/

the 4 nucleotides

2

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

nucleotides

3

What determine biological functions a cell

properties of proteins

4

Does DNA control protein synthesis directly/

No

5

What is the intermediary?

RNA

6

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

a gene, transcription

7

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

RNA in translation

8

linear polymers

RNA and DNA

9

What is made of nucleiotides connected by phosphodiester bonds?

RNA and DNA

10

What is single stranded?

RNA

11

What does RNA have instead of deoxyribonucleotides?

ribonucleotides

12

RNA has.... instead of Thymine

Uracil

13

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

RNA

14

Ribose has an OH, deoxyribose has an ...

H

15

Uracil has a H.... thymine has a

methyl

16

mRNAs function

messenger RNAs, code for proteins

17

rRNAs function

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

18

tRNA

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

19

snRNAs

small nucleolar RNAs, help to process and chmicall modify rRNAs

20

miRNAs

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

21

siRNas

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

22

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

messenger RNA

23

What is many genes final product

RNA

24

WHat does non coding RNa serve as

enzymatic and structural components for many biological processes

25

the core of ribosome and catalyze protein synthesis

ribosomal RNA

26

form the core of ribosomes and catalyze proteins synthesis

ribosomeal RNA

27

form adaptors that select and hold amnio acids during protine synthesis

transfer RNA

28

direct the spicing of pre mRNA to form mRNA

small nuclear RNA

29

regulate eukaryotic gene expression by degrading select m RNA

small interfering RNA

30

regulate gene expression by blocking translation of sleecive mRNA

micro RNA

31

multi subutnit complex

bacterial RNA polymerase (RNA pol)

32

what is holoenzyme

a2bb'signma

33

What Does holoenzyme catalyze?

the formation of phosphodiester bonds that link nucleotides

34

What does RNA pol have?

proof-reading nuclease