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BTMS 8th Grade- LS Unit Test Study Quiz

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Read the statement and decide if it is an observation or an inference. The man is wearing a striped tie.

a)

Observation

b)

Inference

2.

Read the statement and decide if it is an observation or an inference. The car seems to be a VW Bug.

a)

Observation

b)

Inference

3.

Read the statement and decide if it is an observation or an inference. The man's tongue is sticking out.

a)

Observation

b)

Inference

4.

Read the statement and decide if it is an observation or an inference. The dog is smarter than the human.

a)

Observation

b)

Inference

5.

Read the statement and decide if it is an observation or an inference. The dog has long ears.

a)

Observation

b)

Inference

6.

Read the statement and decide if it is an observation or an inference. The car is moving very fast.

a)

Observation

b)

Inference

7.

Which of these are recorded during science experiments?

a)

Observation

b)

Inference

8.

Which of these may be used when writing the conclusion of a lab report?

a)

Observation

b)

Inference

9.

True or False: Humans and dogs have the same number of chromosomes.

a)

True

b)

False

10.

How many pairs of chromosomes do humans have?

a)

16

b)

20

c)

23

d)

10

11.

Chromosomes are coiled tightly so they will not get divided during cell division

a)

True

b)

False

12.

Where are genes located?

a)

Chromosomes

b)

Nucleus

c)

Hair

d)

Blood

13.

Which allele overpowers the other?

a)

Recessive overpowers Dominate

b)

Dominate overpowers Recessive

c)

They are equal.

14.

True or False: Genotype determines phenotype.

a)

True

b)

False

15.

Brown eyes are dominant over blue eyes, however, two brown-eyed people can have a blue-eyed child if both of them are what?

a)

Heterozygous

b)

Homozygous Dominate

c)

Homozygous Recessive

16.

True or False: What an organism "looks like" is considered its Genotype?

a)

True

b)

False

17.

True or False: A Genome is an organism's complete set of DNA

a)

True

b)

False

18.

Toby the cat is homozygous recessive for short hair (hh) and Ruby the cat is also homozygous recessive (hh) for short hair.  Is it possible for them to create a long-haired kitten?

a)

Yes

b)

No

19.

Who is considered the father of genetics?

a)

Charles Darwin

b)

Gregor Mendel

c)

Charles Watson

d)

Francis Crick

20.

How many chromosomes (not pairs) are in each human cell?

a)

23

b)

43

c)

46

d)

26

21.

The four sub-molecules of DNA (A,T,G,C) form what?

a)

Base Pairs

b)

Twin Pairs

c)

Proteins

d)

Chromosomes

22.

What is the base pair for Adenine?

a)

Thymine

b)

Cytosine

c)

Guanine

23.

The base pair for Guanine is?

a)

Thymine

b)

Cytosine

c)

Adenine

24.

What determines the function of DNA?

a)

size

b)

structure

c)

color

d)

usefulness

25.

True or False: Using your 5 senses to gather information is also known as making an observation.

a)

True

b)

False

26.

True or False: the development of ideas based on observations is also known as an inference.

a)

True

b)

False

27.

Which is FALSE?

a)

DNA is the molecule of life.

b)

DNA is located inside cells.

c)

DNA is thicker than a strand of human hair.

d)

My DNA is unique to me.

28.

True or False: Phenotype is observable physical characteristics.

a)

True

b)

False

29.

True or False: Genotype is your genetic makeup.

a)

True

b)

False

30.

The passing of traits from parents to offspring is called:

a)

Genetics

b)

Heredity

c)

Hybrid

d)

Purebred

31.

What is another word for heterozygous?

a)

Purebred

b)

Hybrid

c)

Allele

d)

Genetics

32.

An allele whose trait is masked (or hidden) by another allele is called:

a)

Dominant

b)

Recessive

c)

Weak

d)

Small

33.

A blending of traits is known as

a)

Dominant

b)

Recessive

c)

Incomplete Dominance

d)

Polygenic

34.

When the phenotype is influenced by more than one gene.

a)

dominant

b)

recessive

c)

incomplete dominance

d)

polygenic

35.

What does the F1 generation represent?

a)

original parents

b)

offspring of the original parents

c)

offspring of the F1 generation

d)

offspring of the F2 generation

36.

What does the F2 generation represent?

a)

original parents

b)

offspring of the original parents

c)

offspring of the F1 generation

d)

offspring of the F2 generation

37.

What does the P generation represent?

a)

original parents

b)

offspring of the original parents

c)

offspring of the F1 generations

d)

offspring of the F2 generation

38.

A gene that is expressed (or shows) only in the homozygous state.

a)

dominant

b)

heterozygous

c)

homozygous

d)

recessive

39.

Pink flowers (F) are dominant to yellow flowers (f).

Widow's Peak (H) is dominant and Straight hairline (h) is recessive.

Brown eyes (B) are dominant. Blue eyes (b) are recessive.

Pink Flower

a)

FF

b)

ff

40.

Pink flowers (F) are dominant to yellow flowers (f).

Widow's Peak (H) is dominant and straight hairline (h) is recessive.

Brown eyes (B) are dominant. Blue eyes (b) are recessive.

Straight Hair

a)

HH

b)

Hh

c)

hh

41.

Pink flowers (F) are dominant to yellow flowers (f).

Widow's Peak (H) is dominant.  Straight hairline (h) is recessive.

Brown eyes (B) are dominant. Blue eyes (b) are recessive.

Bb

a)

Brown Eyes

b)

Blue Eyes

42.

Choose either Dominant or Recessive.

M

a)

Dominant

b)

Recessive

43.

Choose either Dominant or Recessive.

d

a)

Dominant

b)

Recessive

44.

Tell whether they are homozygous dominant, homozygous recessive, or heterozygous.

AA

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

45.

Tell whether they are homozygous dominant, homozygous recessive, or heterozygous.

ee

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

46.

Tell whether they are homozygous dominant, homozygous recessive, or heterozygous.

Rr

a)

Homozygous dominant

b)

homozygous recessive

c)

heterozygous

47.

Wavy hair is a blending of curly hair ( the dominant trait) and straight hair (the recessive trait.)

a)

Complete Dominance

b)

Incomplete Dominance

c)

Codominance

48.

The dominant allele will overpower the recessive allele and the dominant trait will show

a)

Complete Dominance

b)

Incomplete Dominance

c)

Codominance

49.

Genes are not dominant or recessive, a blending of traits

a)

Complete Dominance

b)

Incomplete Dominance

c)

Codominance

50.

A relationship between alleles in which both alleles for a gene are fully expressed.

a)

Complete Dominance

b)

Incomplete Dominance

c)

Codominance