DNA TRANSCIPTION (3RD PART OF LQ2) Flashcards

1
Q

The first step of Gene Expression

A

DNA transcription

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2
Q

dna transcription is also known as?

A

RNA synthesis

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3
Q

these are antibodies and protect the bodies against foreign elements

A

proteins

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4
Q

these catalyze reactions

A

enzymes

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5
Q

these transmit signals

A

messenger

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6
Q

these are strucutres and support for cells

A

structural

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7
Q

these bind and carry atoms and small molecules

A

transport/storage

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8
Q

It acts as a unified system, performing all the functions required for RNA synthesis

A

RNA POLYMERASE

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9
Q

Serves as our blueprint where we encode the bases of our RNA

A

● TEMPLATE STRAND

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10
Q

also known as the sense strand or non-template strand, is one of the two strands of DNA that serves as a template for mRNA synthesis during transcription.

A

CODING STRANDS

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11
Q

t delivers the bases needed to pair with the RNA, essentially carrying the letters for RNA synthesis.

A

NTPs - Nitrogen triphosphate

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12
Q

This portion is a combination half
in half, half dna and half rna
→ This is also temporary.

A

● RNA-DNA HYBRID REGION

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13
Q

signifies the starting point of
initiation

A

TATA

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14
Q

→ This is the site of the main event, where everything happens.

A

ELONGATION

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15
Q

This region serves as the starting point for transcription.

A

initiation

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16
Q

The promoter region consists of four bases: Thymine, Adenine, Thymine, and Adenine.

A

initiation

17
Q

→ Matches the mRNA sequence

A

the coding strand

18
Q

→ Initiates transcription

A

RNA Polymerase

19
Q

This sequence emits signals
indicating the end or termination of
the process.

A

TERMINATION

20
Q

REQUIREMENTS BEFORE LEAVING THE NUCLEUS

A

Processing, quality check, packaging

21
Q

involves removing unnecessary bases because not all of the codes are essential for maturation

22
Q

Are required to make proteins

23
Q

This complex assists in removing unnecessary elements.

A

○ Spliceosome

24
Q

are catalytic RNA molecules that function as enzymes and can splice RNA

25
This process involves double-checking and proofreading errors, correcting any discrepancies that may arise.
EDITING
26
→ Signals the end of mRNA → Exports mRNA out of the nucleus → Protects mRNA from enzymes that might break it down
POLYADENYLATION
27
→ Single Guanine → Consist Guanine
5’cap
28
→ “Poly A tail” → Around 250 Adenines
○ 3’ tail
29
this serves as the primary template for synthesizing proteins by ribosomes. It is the central player, holding the blueprint for protein synthesis.
Messenger RNA
30
transfers specific amino acids to growing polypeptide chains at the ribosomal site of protein synthesis during translation
➔ Non-coding RNA
31