Quiz about DNA Genes Traits

Question 1

A segment of DNA that codes for a trait

Accepted Answer

gene

Answer

centromere

Answer

chromosome

Answer

chromatid

Question 2

Genetic traits are determined by one or more

Accepted Answer

genes

Answer

organelles

Answer

random chances

Answer

cells

Question 3

A version or variation of a gene

Accepted Answer

allele

Answer

trait

Answer

gene

Answer

DNA

Question 4

Long strands of DNA are wrapped into

Accepted Answer

Chromosome

Answer

DNA

Answer

Alleles

Answer

Phenotype

Question 5

Chromosomes are made of

Accepted Answer

DNA

Answer

RNT

Answer

WWE

Answer

DMA

Question 6

Humans have _______ pairs of chromosomes, for a total of _______ chromosomes.

Accepted Answer

23, 46

Answer

10, 20

Answer

25, 100

Answer

46, 92

Question 7

Which of the following best describes a DNA molecule?

Accepted Answer

double helix

Answer

contains ribose

Answer

made of amino acids

Answer

contains uracil

Question 8

In a molecule of double-stranded DNA, the amount of adenine present is always equal to the amount of _________.

Accepted Answer

thymine

Answer

cytosine

Answer

guanine

Answer

uracil

Question 9

What determines the code, or information, of a DNA molecule?

Accepted Answer

the order (sequence) of the nitrogen bases

Answer

the shape (structure) of the nitrogen bases

Answer

the color of the nitrogen bases

Answer

the frequency (number) of nitrogen bases

Question 10

The two strands of nitrogenous bases in DNA are joined by which type of bond?

Accepted Answer

hydrogen bonds

Answer

polar bonds

Answer

ionic bonds

Answer

covalent bonds

Question 11

Which 2 molecules form the sides (backbone) of the DNA ladder?

Accepted Answer

deoxyribose sugar and phosphate

Answer

deoxyribose sugar and adenine

Answer

deoxyribose sugar and a hydrogen bond

Answer

deoxyribose sugar and the nucleus

Question 12

What are the three components of a nucleotide?

Accepted Answer

sugar, phosphate, nitrogen base

Answer

sugar, hydrogen, nitrogen base

Answer

sugar, oxygen, nitrogen base

Answer

sugar, phosphate, protein

Question 13

X outlines a(n) ___________.

Accepted Answer

nucleotide

Answer

amino acid

Answer

nitrogen base

Answer

nitrogen base pair

Question 14

In humans where does genetic information come from?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 15

All of the DNA of the human species is know as ____.

Accepted Answer

human genome

Answer

chromosomes

Answer

genetics

Answer

genetic traits

Question 16

The sequence of all 3 billion base pairs of human DNA identified by scientists

Accepted Answer

Human Genome Project

Answer

genetic trait

Answer

x-linked trait

Answer

gene therapy

Question 17

What is a genome?

Accepted Answer

The complete haploid amount of genetic material present in a cell or organism

Answer

A garden ornament

Answer

The sum of all human material.

Answer

A totally unique set of genetic material not shared with anything else

Question 18

Nitrogenous bases are joined by which type of bond?

Accepted Answer

hydrogen bonds

Answer

polar bonds

Answer

ionic bonds

Answer

covalent bonds

Question 19

What is the complement to the DNA strand below:
5'-ATGCCAT-3'

Accepted Answer

3'-TACGGTA-5'

Answer

5'-TACGGTA-3'

Answer

3'-ATGGCAT-5'

Answer

5'-ATGGCAT-3'

Question 20

Replicate the following strand of DNA:
AATCATGGA

Accepted Answer

TTAGTACCT

Answer

AATCATGGA

Answer

UUAGUACCU

Answer

GGATAUCUA

Question 21

The concept that DNA is made of two strands running in opposite directions is called:

Accepted Answer

Antiparallel

Answer

Isomerism

Answer

Enantiomerism

Answer

S/R Chirality

Question 22

Which nitrogen base pairs with Guanine?

Accepted Answer

Cytosine

Answer

Adenine

Answer

Thymine

Answer

Arganine

Question 23

The bond that holds the sugar and the phosphate together are STRONG bonds called:

Accepted Answer

Phosphodiester Bonds

Answer

Hydrogen Bonds

Answer

Nitrogen Bonds

Answer

Carbon Bonds

Question 24

The haploid number of human chromosomes is

Accepted Answer

23

Answer

11

Answer

12

Answer

46

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