Quiz about 8th Grade Genetics

Question 1

An organism has how many copies of a gene for each feature?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 2

Heterozygous means there is/are............

Accepted Answer

2 copies of genes that are different.

Answer

0 copies of the same gene.

Answer

1 copy of the same gene.

Answer

2 copies of the same gene.

Question 3

Smallest unit of all living things.

Accepted Answer

Cell

Answer

Nucleus

Answer

Ribosome

Answer

Protein molecule

Question 4

The organelle where all genetic material is stored containing the codes to make proteins.

Accepted Answer

Nucleus

Answer

Cell

Answer

Ribosome

Answer

Protein molecule

Question 5

Type of large molecule that performs important functions inside the cell.

Accepted Answer

Protein molecule

Answer

Cell

Answer

Nucleus

Answer

Ribosome

Question 6

The organelle where proteins are assembled.

Accepted Answer

Ribosome

Answer

Cell

Answer

Nucleus

Answer

Protein molecule

Question 7

The way something is shaped or constructed.

Accepted Answer

structure

Answer

feature

Answer

gene

Answer

organism

Question 8

A characteristic that members of a species have.

Accepted Answer

feature

Answer

variation

Answer

structure

Answer

gene

Question 9

How many copies of different versions of genes, that provide instructions for one type of protein, do homozygous genes have?

Accepted Answer

0

Answer

1

Answer

2

Answer

3

Question 10

The difference in traits between individual organisms.

Accepted Answer

variation

Answer

function

Answer

structure

Answer

gene

Question 11

This molecule is found in the nucleus and contains the genes of the organism.

Accepted Answer

DNA

Answer

protein

Answer

RNA

Answer

ribosome

Question 12

Two parrots have different parents. One has a blue tail and the other does not. Why do the parrots have different colored tails?

Accepted Answer

The parrot has different versions of the gene for tail color, this instructs for different proteins that connect in different ways to make different tail colors.

Answer

Each parrot has different tail colors because different parents will have different color tails.

Answer

Each parrot has different tail colors because they have different versions of the gene for tail color that connect together to make different tail colors.

Answer

Each parrot has different versions of the gene for tail color. The genes are split inside one parrot and not the other.

Question 13

The instructions to make what molecules are in a gene?

Accepted Answer

protein

Answer

DNA

Answer

RNA

Answer

fatty acids

Question 14

How many gene versions does a spider carry for venom?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 15

True or False?

A heterozygous organism produces two proteins for that trait.

Accepted Answer

True

Answer

False

Question 16

Variations of a certain feature is also know as its.......

Accepted Answer

trait

Answer

gene

Answer

chromosome

Answer

DNA

Question 17

Which of the following represent a homozygous trait?

Accepted Answer

F1F1

Answer

V1V2

Answer

R2R3

Answer

Bb

Question 18

Check all that apply:

Which of the following characteristics is a rhino LEAST likely to pass on to its offspring?

Accepted Answer

scars on its head

Accepted Answer

loss of an eye

Answer

skin color

Answer

ear shape

Answer

foot size

Question 19

Two heterozygous spiders have a baby. V1V2 is the venom gene version that produces an offspring that kills. What percentage of offspring will have venom that kills?

Accepted Answer

50 %

Answer

0 %

Answer

25 %

Answer

100 %

Question 20

Which of the following conditions would the farmer most likely want the grapevines to produce sexually?

Accepted Answer

When developing new varieties of fruit.

Answer

When making identical copies of a plant.

Answer

When producing fruit that is all the same size.

Answer

When growing many new plants from cuttings

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