Lecture 7 Flashcards Preview

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Flashcards in Lecture 7 Deck (34)
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1
Q

What direct the formation of an organism/

A

the 4 nucleotides

2
Q

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

A

nucleotides

3
Q

What determine biological functions a cell

A

properties of proteins

4
Q

Does DNA control protein synthesis directly/

A

No

5
Q

What is the intermediary?

A

RNA

6
Q

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

A

a gene, transcription

7
Q

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

A

RNA in translation

8
Q

linear polymers

A

RNA and DNA

9
Q

What is made of nucleiotides connected by phosphodiester bonds?

A

RNA and DNA

10
Q

What is single stranded?

A

RNA

11
Q

What does RNA have instead of deoxyribonucleotides?

A

ribonucleotides

12
Q

RNA has…. instead of Thymine

A

Uracil

13
Q

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

A

RNA

14
Q

Ribose has an OH, deoxyribose has an …

A

H

15
Q

Uracil has a H…. thymine has a

A

methyl

16
Q

mRNAs function

A

messenger RNAs, code for proteins

17
Q

rRNAs function

A

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

18
Q

tRNA

A

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

19
Q

snRNAs

A

small nucleolar RNAs, help to process and chmicall modify rRNAs

20
Q

miRNAs

A

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

21
Q

siRNas

A

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

22
Q

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

A

messenger RNA

23
Q

What is many genes final product

A

RNA

24
Q

WHat does non coding RNa serve as

A

enzymatic and structural components for many biological processes

25
Q

the core of ribosome and catalyze protein synthesis

A

ribosomal RNA

26
Q

form the core of ribosomes and catalyze proteins synthesis

A

ribosomeal RNA

27
Q

form adaptors that select and hold amnio acids during protine synthesis

A

transfer RNA

28
Q

direct the spicing of pre mRNA to form mRNA

A

small nuclear RNA

29
Q

regulate eukaryotic gene expression by degrading select m RNA

A

small interfering RNA

30
Q

regulate gene expression by blocking translation of sleecive mRNA

A

micro RNA

31
Q

multi subutnit complex

A

bacterial RNA polymerase (RNA pol)

32
Q

what is holoenzyme

A

a2bb’signma

33
Q

What Does holoenzyme catalyze?

A

the formation of phosphodiester bonds that link nucleotides

34
Q

What does RNA pol have?

A

proof-reading nuclease