DNA/genes Flashcards

1
Q

What are strands of DNA bundled into in a cell with a nucleus?

A

Chromosomes

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2
Q

What is the relationship between genes and DNA?

A

DNA carries the genes.

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3
Q

What is not true of DNA?

A

DNA is made up of 5 subunits.

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4
Q

What does the rungs of the DNA ladder look like?

A

A pair of bases

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5
Q

What are the subunits of DNA?

A

Nucleotides

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6
Q

What are nucleotides made up of?

A

A sugar, phosphate, and base

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7
Q

What are the pairs of DNA?

A

Adenine and Thymine

Cytosine and Guanine

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8
Q

If there is 30% of Cytosine in a sample of DNA, there will be 20% of what?

A

Adenine

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9
Q

Three bases code for one what?

A

Amino acid

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10
Q

What is the complementary strand of a DNA sequence to TAGTCA?

A

ATCAGT

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11
Q

What nitrogen base is not contained in DNA?

A

Uracil

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12
Q

For a DNA molecule to be replicated, or copied, what does a DNA molecule do?

A

Splits down the middle

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13
Q

What is the first step of DNA replication?

A

A strand of DNA splits down the middle

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14
Q

What are the units of of protein which link together in a specific order?

A

Amino acids

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15
Q

What carries the codes for making proteins?

A

RNA

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16
Q

What is the first step of protein production?

A

RNA making a mirror-like copy of a DNA sequence

17
Q

What is a permanent change in the genetic makeup of a cell?

18
Q

What can a mutation produce?

A

The wrong protein

19
Q

What is genome?

A

The genome is the entire set of DNA on chromosomes.
Human genomes are made up of 23 pairs, or 46 chromosomes.
Strawberries have a genome.
The genomes of humans and chimpanzees are 99% similar.

20
Q

How is RNA different than DNA?

A

RNA is a single helix; DNA is a double helix.
In RNA, the base U replaces base T.
RNA is found in the cytoplasm and ribosomes.
RNA possesses a ribose sugar.

21
Q

What cell part synthesizes proteins using messenger and transfer RNA?

22
Q

What super scientist would be interested in how ribosomes, cytoplasm, and nucleus are involved in the process of protein synthesis and DNA replication?

A

Cell biologist

23
Q

What is protein synthesis?

A

To create, or manufacture proteins

24
Q

What scientist said the amount of Adenine equals the amount of Thymine in DNA?

A

Erwin Chargraff

25
What scientist discovered the double helix shape of DNA in 1953?
James Watson
26
What scientist secretly took information from one scientist and provide it to other scientists?
Maurice Wilkins
27
What scientist used x-ray diffraction to determine that DNA has a spiral shape?
Rosalind Franklin
28
What scientist died before being awarded the Nobel Peace Prize for their discovery of the shape of DNA?
Rosalind Franklin
29
What scientist said the amount of Cytosine equals the amount of Guanine in DNA?
Erwin Chargraff