Quiz about 8th Grade Life Science Review

Question 1

How many parent(s)are needed for asexual?

Accepted Answer

1

Answer

4

Answer

9

Answer

100

Question 2

All Offspring of Asexual reproduction are identical

Accepted Answer

True

Answer

False

Question 3

This produces 2 identical cells.

Accepted Answer

mitosis

Answer

meiosis

Question 4

What are some of the facts about sexual reproduction?

Accepted Answer

Takes two mates to reproduce and takes a longer time to reproduce

Answer

Takes one mate to reproduce and takes a shorter amount of time to reproduce

Answer

Takes two mates to reproduce and takes a shorter amount of time to reproduce

Answer

Takes one mate to reproduce and takes a shorter amount of time to reproduce

Question 5

more genetic diversity among offspring.

Accepted Answer

sexual

Answer

asexual

Question 6

What cell division processes is this a picture of?

Accepted Answer

Meiosis

Answer

Mitosis

Answer

Mitosis and Meiosis

Answer

None of the above

Question 7

Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?

Accepted Answer

In order for genetic information to be transferred into daughter cells.

Answer

In order for the cell to be able to increase in size.

Answer

In order for the DNA to be contained in the nucleus.

Answer

In order for the cell to re-order the DNA sequencing in the new cells.

Question 8

What is the diploid number of cells found in a human body cell?

Accepted Answer

46

Answer

23

Answer

92

Answer

47

Question 9

The process on the left is:
The process on the right is:

Accepted Answer

Left: mitosis
Right: meiosis

Answer

Left: meiosis
Right: meiosis

Answer

Left: meiosis
Right: cloning

Answer

Left: mitosis
Right: mitosis

Question 10

Most of the cells in the human body are produced by

Accepted Answer

mitosis

Answer

meiosis

Question 11

What is a change in an organism that allows for it to survive in its environment?

Accepted Answer

adaptation

Answer

homologous

Answer

vestigial

Answer

variation

Question 12

In meiosis, the haploid number of chromosomes in a human sex cell is:

Accepted Answer

23

Answer

46

Answer

92

Answer

22

Question 13

Hair colour is an example of

Accepted Answer

phenotype

Answer

genotype

Question 14

What is this an example of?

Accepted Answer

homologous structures

Answer

vestigial structures

Answer

embryology

Answer

fossil record

Question 15

Predict which moth would increase in population

Accepted Answer

dark

Answer

light

Question 16

Alternative forms of a gene are called

Accepted Answer

Alleles

Answer

Homozygous

Answer

DNA

Answer

Genetics

Question 17

The gradual change in species over time is...

Accepted Answer

Evolution

Answer

Nucleotide

Answer

Adaptation

Answer

Natural Selection

Question 18

The genotype of:  bb   will have the PHENOTYPE of...

Accepted Answer

white fur

Answer

black fur

Answer

course hair

Answer

fine hair

Question 19

Which of the following is homozygous recessive?

Accepted Answer

tt

Answer

Tt

Answer

TT

Answer

T

Question 20

T - tall and t = short
In the punnett square below, what belongs in the missing square

Accepted Answer

tt

Answer

Tt

Answer

Bb

Answer

TT

Question 21

Being a carrier of a genetic disorder is an example of

Accepted Answer

genotype

Answer

phenotype

Question 22

Two organisms that are closely related would have

Accepted Answer

very similar DNA sequence

Answer

exactly the same DNA sequences

Answer

no proteins in common

Answer

completely different DNA sequence

Question 23

Which of the following genotypes is heterozygous?

Accepted Answer

Bb

Answer

BB

Answer

bb

Answer

B

Question 24

What goes in the top right square?

Accepted Answer

bb

Answer

BB

Answer

Bb

Question 25

Is the following cell diploid or haploid?

Accepted Answer

Diploid

Answer

Haploid

Question 26

Which process and type of resulting cells are represented?

Accepted Answer

meiosis, gametes

Answer

mitosis, gametes

Answer

mitosis, body cells

Answer

meiosis, body cells

Question 27

This trait will always be expressed if present because it will mask the expression of others

Accepted Answer

dominant

Answer

stem cells

Answer

heterozygous

Answer

recessive

Question 28

Who is the father of evolution?

Accepted Answer

Darwin

Answer

Mendel

Answer

Newton

Answer

Einstein

Question 29

What is the ratio of purple to white flowers?

Accepted Answer

3:1

Answer

1:1

Answer

1:3

Answer

2:2

Question 30

What is this an example of?

Accepted Answer

variation

Answer

diversity of species

Answer

vestigial structures

Answer

DNA studies

Question 31

What is the advantage of having different shaped beaks?

Accepted Answer

To be able to eat the food readily available in the environment.

Answer

To look different from other species.

Answer

To protect itself against predators.

Answer

To protect itself against prey.

Question 32

The female sex cell is called

Accepted Answer

egg

Answer

zygote

Answer

sperm

Answer

fertilization

Question 33

Mitosis is useful for the creation of new cells which is important for all of the following EXCEPT

Accepted Answer

generation of gametes.

Answer

organism growth.

Answer

repair of damage.

Answer

replacement of worn out cells.

Question 34

All of the offspring of an organism have the same genetic material, which is identical to the parent organism. From this, we can conclude that this organism -

Accepted Answer

reproduces asexually

Answer

makes its own food

Answer

is unicellular

Answer

live in a marine habitat

8th Grade Life Science Review

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