Genetics Flashcards

0
Q

mRna has

A

codons

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1
Q

mRNA is synthesized in

A

transcription

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2
Q

mrna is synthesized in the

A

nucleus

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3
Q

blank codons equal one amino acid

A

three

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4
Q

TRNA brings amino acids to the

A

ribosome

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5
Q

polypeptide is a sequence of

A

amino acids

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6
Q

TRNA has

A

anti-codons

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7
Q

TRNA transfers amino acids during

A

translation

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8
Q

ribosomes are the site where

A

translation takes place

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9
Q

One amino acid equals blank nitrogen bases

A

3

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10
Q

there are blank different amino acids

A

20

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11
Q

what bond Binds amino acid together

A

peptide

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12
Q

A DNA nucleotide may contain

A

deoxyribose, thymine, and a phosphate group

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13
Q

levels of organization within a cell of multicellular organisms

A

cell, nucleus, chromosome, gene

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14
Q

The coded information of a DNA molecule is determined by the

A

sequence of amino acids

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15
Q

all cells from a fertilized egg have

A

identical DNA

16
Q

sudden change in the DNA of a chromosome can usually be passed on to future generations of the change occurs in a

A

Sex cell

17
Q

New in heritable characteristics would be at least likely to result from

A

mutations which occur in muscle cells and skin cells

18
Q

what is the function of messenger RNA molecules in the synthesis of proteins

A

they carry information that determines the sequence of amino acids

19
Q

functions of DNA

A

Controls functions of cell, contains instructions to make proteins

20
Q

nucleotides

A

DNA made of repeating subunits

21
Q

RNA messenger

A

A single strand, ribose sugar, doesn’t contain base thymine, contains base uracil, follows base pair rule (a-u)

22
Q

transcription

A

occurs in the nucleus of the cell

23
Q

how transcription works

A

A DNA strand separates and serves as a template for RNA assembly, free M RNA nucleotides match up to exposed nucleotides on DNA strand, M RNA strands leaves DNA strand when “stop codon” is reached. The M RNA strand carries code for production of one polypeptide

24
Q

M RNA carries instructions from

A

nucleus to ribosomes

25
Q

translation

A

occurs in cytoplasm of the cell, at the ribosome. RNA is turned into proteins (happens in ribosomes)