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Genetics!

Total questions: 17

Worksheet time: 9mins

Name
Class
Date
1.

An example of a dominant trait is:

a)

brown eyes

b)

blue eyes

c)

blonde hair

d)

red hair

2.

A (a)   trait is the version that usually gets covered up, like blue eyes.

3.

Any change in a gene is called a

a)

disease

b)

mutation

c)

recessive

d)

trait

4.

A new organism produced by one or more parents is an

a)

newborn

b)

trait variation

c)

offspring

d)

gene

5.

True or False: Selective breeding is controlled by humans.

a)

True

b)

False

6.

You _______ your traits from your mom and dad.

a)

inherit

b)

choose

c)

control

d)

blend

7.

Trait _____ are the different ways a trait can appear, like different hair colors.

a)

dominance

b)

variations

c)

combinations

8.

Where is the genetic material located in our bodies?

a)

In our brains

b)

In the nucleus of our cells

c)

In the cytoplasm of our cells

d)

In our blood

9.

How many chromosomes do humans have?

a)

26

b)

23

c)

46

d)

52

10.

The basic unit of heredity is a

a)

chromosome

b)

gene

c)

cell

d)

DNA

11.

DNA is organized into

a)

chromosomes

b)

cells

c)

atoms

d)

genes

12.

Genes are _____ than DNA.

a)

bigger

b)

smaller

13.

A specific segment of DNA that codes for a trait is a

a)

chromosome

b)

nucleus

c)

gene

d)

trait

14.

The outside of ALL cells that controls what comes in and out of the cell is the

a)

cell wall

b)

cytoplasm

c)

cell membrane

d)

vacuole

15.

Which cell parts are only present in a PLANT CELL? (choose all that apply)

a)

cytoplasm

b)

cell wall

c)

chloroplast

d)

mitochondria

16.

Which organelle breaks down food and turns it into energy for the cell?

a)

mitochondria

b)

large central vacuole

c)

cytoplasm

d)

nucleus

17.

The _____ is the brain of the cell.

a)

chloroplast

b)

cell wall

c)

cell membrane

d)

nucleus