wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Year 10 Revision

Total questions: 60

Worksheet time: 41mins

Name
Class
Date
1.
The genotype of an organism describes the
a)
codons that make up the genes
b)
number of gene's on the chromosmes
c)
genetic make-up of a trait
d)
type of chromosomes in the nucleus
2.
Which best explains why children resemble their parents?
a)
they eat same foods
b)
they have similar DNA
c)
they speak the same language
d)
they have the same interests
3.

Which term describes the different forms of a gene

a)

Chromosome

b)

Allele

c)

DNA

d)

Punnett Squares

4.

Aa, DD, Bb, yy are all examples of _______

a)

genotypes

b)

phenotypes

5.

Where is the majority of DNA stored within a cell?

a)

Chloroplast

b)

Cell wall

c)

Cell membrane

d)

Nucleus

6.

Only takes 1 in a gene pair for a trait to show up

a)

recessive genes

b)

DNA

c)

offspring

d)

dominant genes

7.

All of the following are homozygous genotypes except:

a)

RR

b)

Ss

c)

tt

d)

UU

8.

Which of the following is a phenotype?

a)

Homozygous dominant purple

b)

Pp

c)

pp

d)

purple

9.

If red eye color (R) in fruit flies is dominant to white eye color (r), predict the phenotype of an offspring which has a genotype of rr.

a)

Red Eye

b)

White Eye

c)

Homozygous recessive white-eyed fly

d)

Homozygous dominant white-eyed fly

10.

A dominant trait is usually represented with a capital letter.

a)

TRUE

b)

FALSE

11.

Consider this: Free earlobe is represented by capital letter E. Attached earlobe is represented by small letter e. Which of the them is a recessive trait?

a)

free earlobe

b)

attached earlobe

c)

neither of the two

d)

both

12.

When HUMANS select or choose a plant or animal for breeding based on a desired trait

a)

natural selection

b)

artificial selection

13.

Parts of the body that are similar to other species because they have a common ancestor

a)

fossil record

b)

homologous structures

c)

embryology

14.

Shows how different groups of organisms have changed over time.

a)

fossil record

b)

homologous structures

c)

embryology

15.

Body part you have that use to have a purpose but now has little or no function

a)

vestigial organ

b)

embryology

c)

homologous structures

16.

Scientist that contributed the most to our understanding of evolution

a)

Darwin

b)

Lamarck

17.

Organisms with the best suited adaptations for their environment are more likely to survive and reproduce than organisms that are not very well adapted

a)

natural selection

b)

artificial selection

c)

creationism

18.

The more offspring an organism has the greater the odds that a few of them will survive, reproduce and pass on those traits

a)

overproduction

b)

variation

c)

selection

d)

adaptation

19.

a trait that gives an organism an advantage in their particular environment

a)

overproduction

b)

adaptation

c)

selection

d)

variation

20.

a trait that gives an organism an advantage in their particular environment

a)

overproduction

b)

adaptation

c)

selection

d)

variation

21.

Species not closely related evolve similar traits due to their similar environment

a)

Convergent evolution

b)

divergent evolution

c)

parallel evolution

22.

Species from the same ancestor accumulate differences over time

a)

convergent evolution

b)

divergent evolution

c)

parallel evolution

23.

This occur because of the several mutagens like ultraviolet radiation and hazardous chemicals in the environment that can affect genes and chromosomes.

a)

Speciation

b)

Evolution

c)

Mutation

24.
A testable prediction about a scientific investigation is a(n)
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
25.
The summary at the end of an experiment that explains the results is... 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
26.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
27.

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

a)

independent variable

b)

dependent variable

c)

control variable

28.
If I study for my scientific method test, then I will have a better test score. What is the dependent variable?
a)
Scientific Method
b)
Studying
c)
Independent variable
d)
Test score
29.
If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?
a)
True
b)
How fast you get to school
c)
Riding a bike or walking
d)
False
30.

The independent variable is

a)

The variable that you change in an investigation

b)

The variable that you measure in an investigation

c)

A variable that you keep the same in an investigation

31.

The process of obtaining information by using the senses is called a/an

a)

Conclusion

b)

Observation

c)

Inquiry

d)

Scientific method

32.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the dependent variable?

a)

Dropping the same way

b)

Wing Length

c)

Amount of time it takes the helicopter to hit the floor

d)

Dropping from the same height

33.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the independent variable?

a)

Dropping the same way

b)

Wing Length

c)

Amount of time it takes the helicopter to hit the floor

d)

Dropping from the same height

34.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
35.

What is the chemical symbol for iron?

a)

I

b)

Ir

c)

Fe

d)

R

36.

What is iron's atomic number?

a)

12

b)

26

c)

55.85

d)

55

37.

Titanium is in group 4. What period is it in?

a)

2

b)

3

c)

4

d)

5

38.

What element is the chemical symbol Au?

a)

gold

b)

silver

c)

Augium

d)

Auxiom

39.

What is silver's chemical symbol?

a)

S

b)

Ag

c)

Si

d)

I

40.

What is silver's chemical symbol?

a)

S

b)

Ag

c)

Si

d)

I

41.

What is calcium's atomic number?

a)

20

b)

21

c)

22

d)

23

42.

DNA is an acronym for _____

a)

Diphosphorus Nucleic Acid

b)

Ribose Nucleic Acid

c)

Deoxyribonucleic Acid

d)

Deoxyribonucleic Acetate

43.

A nucleotide is composed of

a)

A phosphate, sugar and nitrogenous base

b)

A protein, protein and Guanine

c)

A phosphate, Adenine, and nitrogenous base

d)

A protein, Adenine and nitrogenous base

44.

Which of the following is a base pair?

a)

Adenine - Cytosine

b)

Cytosine - Thymine

c)

Deoxyribose - Cytosine

d)

Cytosine - Guanine

45.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
46.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
47.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
48.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
49.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
50.

The physical appearance of an organism based on traits

a)

Genotype

b)

Phenotype

c)

Meiosis

d)

Genetics

51.

The genotypes codes for

a)

phenotype (physical trait)

b)

DNA

c)

allele

52.

Having two of the SAME alleles for a trait.

a)

Recessive Trait

b)

Homozygous

c)

Genotype

53.

Trait of an organism that can be HIDDEN by the dominant form of a trait.

a)

Recessive Trait

b)

Phenotype

c)

Allele

54.

Having two DIFFERENT alleles for a trait.

a)

Recessive Trait

b)

Heterozygous

c)

Genotype

55.

The trait that overshadows and is expressed.

a)

Dominant Trait

b)

Phenotype

c)

Allele

56.

T - tall and t = short

In the Punnett square, what belongs in the missing square?

a)

tt

b)

Tt

c)

TT

57.

B = brown fur b = white fur

In the punnett square, what is the probability for white fur?

a)

0%

b)

25%

c)

50%

d)

75%

58.

What is ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness? T = tall t = short

a)

0 in 4

b)

1 in 4

c)

2 in 4

d)

4 in 4

59.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
60.
What is the probability of heterozygous offspring?
a)
25%
b)
50%
c)
0%
d)
100%