DNA Flashcards

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1
Q

What is the name of the 4 chemical bases? and what can pair with what?

A

Guanine (G) and Cytosine (C)

Adenine (A) and Thymine (T)

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2
Q

with the base-pair code of CGTACCGA, how would you finish the sequence?

A

GCATGGCT…

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3
Q

In DNA, what does SNP stand for?

A

Single Nucleotide Polymorphisms

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4
Q

What is Heterozygous?

A

having 2 DIFFRENT alleles of a particular gene

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5
Q

What is Homozygous?

A

having 2 IDENITICAL alleles of a particular gene

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6
Q

You have 46 chromosomes, how many do you get from your mother?

A

Half or 23

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7
Q

Which genotype contains 2 of the same alleles?

A

Homozygous

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8
Q

What is the name of diagram that is used to show the genotypes and/or phenotypes of individuals in a family?

A

A Pedigree

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9
Q

_____ are lengths of the DNA carries the genetic information. Fill in the blank

A

Genes

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10
Q

How many “X” chromosomes do men have?

A

1 “X” and 1 “Y”

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11
Q

If you have 2 “X” chromosomes, you are born a ______. Fill in the blank.

A

Female

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12
Q

What is a Haploid cell?

A

A cell that contains a single set of chromosomes

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13
Q

What is a Diploid cell?

A

A cell that contain two copies of each chromosome

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14
Q

Who was the English chemist who used X-ray crystallography to produce photos of DNA?

A

Rosalind Franklin

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15
Q

What are the 3 parts in a DNA Nucleotide?

A

Phosphate, Deoxyribose sugar, Nitrogenous base

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16
Q

What is done in the Nitrogenous base?

A

Where the code is written, includes Adenine ad thymine, Gnomon and Cytosine

17
Q

What is the definition of a Trait?

A

A variation of characteristics that make us who we are.

18
Q

What is the definition of a Chromosome?

A

A structure of wound up DNA.

19
Q

What is the definition of a Gene?

A

A part of the DNA that carries the information which determines a trait.

20
Q

Do haploid cells have homologous chromosomes in them?

A

No, homologous only has one set of chromosomes.

21
Q

How many strands are present in DNA?

A

2 strands

22
Q

What shape does the double helix resemble?

A

A ‘twisted ladder’.

23
Q

Which of the following substances is an example of an enzyme. Lipid. Lactose. Glucase. Lactase. Glucose. Keratin.

A

Glucose

24
Q

What is the name of the Nitrogenous base pairing rule?

A

Complementary base pairing.

25
Q

Term genetic discrimination

A

The unfair treatment of individuals based on the results of a genetic test.