Science Quiz 2

Front 1

the science of heredity

Back 1

genetics

Front 2

an organism having the same genes for a particular trait

Back 2

purebred

Front 3

the transfer of pollen from the anther of one flower to the stigma of another

Back 3

cross-pollination

Front 4

all the traits inherited by an organism

Back 4

heredity

Front 5

a unit of DNA which determines traits

Back 5

gene

Front 6

the female part of a flower

Back 6

pistil

Front 7

a gene which produces its effect even though an opposite gene is present

Back 7

dominant gene

Front 8

the resulting offspring from a cross between two individuals differing in one or more genes

Back 8

hybrid

Front 9

a condition in which neither gene dominates the other; a blended effect is produced

Back 9

incomplete dominance

Front 10

a gene which does not produce its effect when an opposite dominant gene is present

Back 10

recessive gene

Front 11

the upper portion of a stamen, containing pollen grains

Back 11

anther

Front 12

a characteristic carried by a gene

Back 12

trait

Front 13

Pretend you are repeating Mendel's work. You cross a purebred tall garden pea with a dwarf pea. What will the first generation look like?

Back 13

all tall

Front 14

In the second experiment of Mendel's work, you cross a dwarf garden pea with another dwarf pea. What will the first generation of peas look like?

Back 14

all dwarf

Front 15

Next, you cross a purebred smooth pea with a purebred wrinkled pea. What will the first generation of peas look like? ______ % smooth peas

Back 15

100

Front 16

Cross a yellow pea with a green pea. What percent of the peas would be yellow in the first generation? ______%

Back 16

100

Front 17

If the chromosome number of a garden pea is fourteen, how many chromosomes are within the egg cell?

Back 17

7

Front 18

The blood of an organism is responsible for passing genes from parent to child.

Back 18

false

Front 19

During which time period did Gregor Mendel conduct his experiments?

Back 19

about 1850

Front 20

Why is each characteristic or trait represented by two genes?

Back 20

Each parent contributes one gene.

Front 21

A trait which results from two dominant genes is called

Back 21

purebred

Front 22

The sensory nerve endings in the tongue are called

Back 22

taste buds

Front 23

What were the results of Mendel's scientific investigations?

Back 23

1 the understanding of genetics
2 varieties could be explained by inheritance
3 new varieties result from parent's genes

Front 24

A trait which is formed from a blend of genes represents

Back 24

incomplete dominance

Front 25

A recessive gene cannot be hidden by a dominant one.

Back 25

false

Front 26

Punnett Squares are helpful for studying genetics.

Back 26

true

Front 27

Mendel's dwarf pea plants were always purebred dwarfs (tt).

Back 27

true

Front 28

The science of heredity agrees with the Genesis account of each after its kind.

Back 28

true

Front 29

Garden peas are self-pollinated.

Back 29

true

Front 30

is cell division in which two new cells have the same number of chromosomes as the old cel

Back 30

Mitosis

Front 31

The stigma is:

Back 31

he part of a flower that receives pollen

Front 32

The receptacle is:

Back 32

the stalk of the flower

Front 33

An undeveloped plant or animal is called:

Back 33

an embryo

Front 34

Pollen is located in the:

Back 34

anther

Front 35

In a garden pea whose chromosome number is fourteen, meiosis would produce:

Back 35

new cells with half the number of chromosomes

Front 36

If a leaf of a garden pea is damaged, the cells are replaced by:

Back 36

mitosis

Front 37

A pollen grain contains:

Back 37

the sperm cell