Science Quiz 3

Front 1

a substance lacking in albino plants

Back 1

chlorophyll

Front 2

thornless berries are a result of this

Back 2

mutation

Front 3

an albino plant dies as soon as these are gone

Back 3

nutrients

Front 4

phosphate is attached to this in the DNA molecule

Back 4

sugar

Front 5

deoxy means to remove this

Back 5

oxygen

Front 6

the four bases in the DNA molecule of the cell

Back 6

alphabet

Front 7

the science of heredity proves this principle

Back 7

the science of heredity proves this principle

Front 8

DNA forms these

Back 8

giant molecules

Front 9

DNA is the special life substance of these

Back 9

genes

Front 10

albino people and animals have red eyes

Back 10

blood vessels

Front 11

a word meaning the total surroundings of an organism

Back 11

environment

Front 12

offspring from a cross between two organisms differing in one or more genes

Back 12

hybrid

Front 13

an organism having the same genes for a certain trait

Back 13

purebred

Front 14

The transfer of pollen from the anther of one flower to the stigma of another is cross-pollination.

Back 14

true

Front 15

Pollen sticks to the stigma because it has little hooks.

Back 15

false

Front 16

The plant ovary is inside the plant ovule.

Back 16

false

Front 17

Meiosis occurs in male-female reproduction.

Back 17

true

Front 18

In meiosis, new reproductive cells have twice as many chromosomes as regular cells.

Back 18

false

Front 19

An immature, developing plant or animal is called an embryo.

Back 19

true

Front 20

Blood types are inherited, but the blood does not pass on the traits.

Back 20

true

Front 21

Many undesirable traits in humans are recessive.

Back 21

true

Front 22

Gregor Mendel is sometimes called the father of chemistry.

Back 22

false

Front 23

A female reproductive cell is called an

Back 23

egg

Front 24

Intelligence is believed to be controlled by

Back 24

multiple genes

Front 25

Whenever new cells are made with the same number of chromosomes, the process of cell division is called

Back 25

mitosis

Front 26

When neither gene shows dominance and a blended condition is produced, it is called

Back 26

incomplete dominance

Front 27

A gene which does not produce its effect when an opposite dominant gene is present is called a(n) ____ gene

Back 27

recessive

Front 28

The DNA molecule is made up of numerous genes.

Back 28

true

Front 29

Regardless of the physical traits which are determined by genes, an organism must receive the proper nutrients to develop normally.

Back 29

true

Front 30

A chromosome can carry

Back 30

thousands of genes

Front 31

Which statement describes chromosomes?

Back 31

coiled threads of DNA

Front 32

Mutations can produce a beneficial change in an organism after many generations.

Back 32

true

Front 33

The facts of science demonstrate:

Back 33

that DNA can reproduce the traits of an organism without changing the basic kind of organism.

that mutation occurs in nature, but it is extremely rare.

Front 34

An albino plant can still produce food.

Back 34

false

Front 35

Some mutations are beneficial, but other mutations may be harmful or cause death.

Back 35

true