Quiz about DNA & Genetics

Question 1

What did Rosalind Franklin contribute to the history of DNA?

Accepted Answer

She used X-ray crystallography to take a photograph of DNA

Answer

She made a model of DNA

Answer

She died of cancer at 37

Answer

She stole the photo of DNA

Question 2

Dominant alleles are represented by

Accepted Answer

Capital letter

Answer

lowercase letters

Question 3

Homozygous is

Accepted Answer

identical alleles

Answer

different alleles

Answer

letters

Answer

numbers

Question 4

Heterozygous is

Accepted Answer

different alleles

Answer

identical alleles

Answer

letters

Answer

numbers

Question 5

What is the percentage of homozygous recessive traits?

Accepted Answer

50%

Answer

25%

Answer

75%

Answer

100%

Question 6

A structural part of a DNA nucleotide that makes up the 'rungs of the DNA ladder'.

Accepted Answer

base pair

Answer

phosphate

Answer

double helix

Answer

sugar

Question 7

Genetic trait that is represented with a capital letter and will always show if it is present.

Accepted Answer

dominant trait

Answer

recessive trait

Answer

heredity

Answer

allele

Question 8

The twisted ladder structure of DNA. Two strands of nucleotides wound about each other.

Accepted Answer

double helix

Answer

protein

Answer

gene

Answer

allele

Question 9

DNA segment that has instructions for traits that are passed from parent to child/offspring

Accepted Answer

gene

Answer

nucleus

Answer

proteins

Answer

mutagen

Question 10

The human manipulation of individual genes within organisms.

Accepted Answer

genetic engineering

Answer

mutagen

Answer

transcription

Answer

phenotype

Question 11

An organism's physical appearance, or visible traits.

Accepted Answer

phenotype

Answer

genotype

Answer

dominant trait

Answer

recessive trait

Question 12

A condition that appears only in individuals who have received 2 copies of the gene for a trait

Accepted Answer

recessive trait

Answer

phenotype

Answer

genotype

Answer

dominant trait

Question 13

A heterozygous yellow pea plant's genotype would be:

Accepted Answer

Yy

Answer

YY

Answer

yy

Answer

Yg

Question 14

A nucleotide consists of

Accepted Answer

A phosphate, sugar and nitrogenous base

Answer

DNA

Answer

adenine and thymine

Answer

genes

Question 15

In a double strand of DNA, the nitrogen bases only pair in a certain combination. Which combination is correct?

Accepted Answer

A-T and G-C

Answer

A-C and T-G

Answer

C-T and A-G

Answer

A-A C-C

Question 16

This scientist studied pea plants and was considered to be the "Father of Genetics".

Accepted Answer

Gregor Mendel

Answer

Reginald Punnett

Answer

Charles Darwin

Answer

Rosalind Franklin

Question 17

Which of the following is showing a genotype that would be described as homozygous recessive (purebred)

Accepted Answer

dd

Answer

Dd

Answer

DD

Answer

dD

Question 18

What are three types of mutation?

Accepted Answer

Insertion, Deletion, Subsitution

Answer

Deletion, Newstion, Subsitution

Answer

Newstion, Deletion, Insertion

Answer

Insertion, Newstion, Substitution

Question 19

What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A

Accepted Answer

Substitution

Answer

Deletion

Answer

Insertion

Answer

Frameshift

Question 20

Are all mutations bad?

Accepted Answer

No

Answer

Yes

Question 21

Punnet Squares can be used to...

Accepted Answer

Predict the outcome of a trait in offspring

Answer

Predict the time a baby will be born

Answer

do nothing

Question 22

What did Gregor Mendel use to discover the principles that rule heredity?

Accepted Answer

Pea Plant

Answer

Pigeons

Answer

Pear trees

Answer

Photosynthesis

Question 23

Rosalind Franklin's "Photo 51" allowed Watson and Crick to determine the _______ of DNA.

Accepted Answer

Shape

Answer

Backbone

Answer

Nitrogen bases

Answer

Hydrogen bonds

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