Multiple Choice On Test

Question 1

It is widely accepted that life first evolved…

Answer 1

In the oceans

Question 2

DNA is best described as…..

Answer 2

The chemical carrier of genetic information

Question 3

The twisted ladder shape of DNA molecule is called a….

Answer 3

Double helix

Question 4

When observing a cell under a powerful microscope, a scientist would look for the DNA in:

Answer 4

The nucleus

Question 5

The four bases in DNA are

Answer 5

Adenine, thymine, cytosine, guanine

Question 6

Within a cell DNA is often would up into tight separate packages called

Answer 6

Chromosomes

Question 7

A gene is a section of DNA that codes for a specific characteristic. Different versions of genes are called…

Answer 7

Alleles

Question 8

An individual who has two of the same alleles is said to be….

Answer 8

Homozygous

Question 9

The appearance or physical characteristics resulting from a given gene combination is referred to as the….

Answer 9

Phenotype

Question 10

Offspring that result from crosses between homozygous parents with different phenotype a are…

Answer 10

All heterozygous

Question 11

The age of the earth is approximately….

Answer 11

4.6 billion years old

Question 12

If an organisms diploid number (the number of chromosomes in all body cells) is 12 it’s haploid number (the number of chromosomes in sex cells) is….

Answer 12

6

Question 13

Gametes or sex cells (sperm or egg) are produced by the process of…

Answer 13

Mitosis

Question 14

The complementary pattern of this piece of DNA

A-G-T-T-G-C would be…..

Answer 14

T-C-A-A-C-G