The Genetic Code Flashcards

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1
Q

What is a gene?

A

Section of DNA on a chromosome that codes for a polypeptide

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2
Q

What is an allele?

A

Alternative forms of a particular gene

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3
Q

What are the 4 features of the genetic code?

A

It is a triplet code
It is a degenerate code
It is a non-overlapping code
It is a universal code

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4
Q

What does triplet code mean?

A

3 bases = 1 amino acid

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5
Q

What dies degenerate code mean?

A

most amino acids are coded for by more than one triplet

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6
Q

What does non-overlapping code mean?

A

each base appears in only one triplet.
• Only read each base once

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7
Q

What does universal code mean?

A

it is the same in all known living things

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8
Q

What are exons?

A

Coding regions within a gene

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9
Q

What are introns?

A

Non coding regions within a gene

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10
Q

What are mini satellites?

A

base sequences between genes that are non-coding.
They are not transcribed

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11
Q

What is the genome?

A

The complete set of genes and non-coding DNA in a cell, including those in mitochondria and/or chloroplasts

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12
Q

What is a proteome?

A

The full range of proteins produced by the genome

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13
Q

What is splicing?

A

When introns are removed

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