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DNA, Reproduction, & Genetics Review

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

A section of DNA that codes for a specific trait

a)

chromosome

b)

gene

c)

ribosome

d)

nuclues

2.

A molecule coded for by DNA that builds an organism's traits

a)

ribosome

b)

protein

c)

gene

d)

nulceotide

3.

A thread-like structure that contains DNA

a)

nucleus

b)

amino acid

c)

chromosome

d)

ribosome

4.

The Building blocks of proteins

a)

amino acid

b)

RNA

c)

chromosome

d)

nucleus

5.

The building blocks of DNA

a)

nucleotides

b)

proteins

c)

chromosomes

d)

Ribosomes

6.

What is the shape of DNA?

a)

Helix

b)

Double Helix

c)

Double Decker

d)

Spiral Cylinder

7.

Where is DNA located within a cell?

a)

Nucleus

b)

Cytoplasm

c)

Ribosome

d)

Mitochondria

8.

Which organizes DNA units from smallest to largest?

a)

nucleotide, chromosome, gene

b)

nucleotide, gene, chromosome

c)

chromosome, nucleotide, gene

d)

All units are the same size

9.

A gene is analyzed and found to contain 30% adenine. How much of the gene is thymine?

a)

20%

b)

30%

c)

40%

d)

70%

10.

What is the sugar called that makes up DNA?

a)

Ribose

b)

Xylose

c)

Dextrose

d)

Deoxyribose

11.

DNA is made up nucleotides. All of the following are parts of a nucleotide EXCEPT:

a)

sugar

b)

phosphate

c)

nitrogenous base

d)

protein

12.

What is the complementary DNA strand to the DNA sequence: AAT GCG?

a)

AAT GCG

b)

GGC ATA

c)

CCG TAT

d)

TTA CGC

13.

Which of the following scientists did NOT help discover the structure of DNA?

a)

Rosalind Franklin

b)

James Watson

c)

Francis Crick

d)

Isaac Newton

14.

What did Erwin Chargaff discover that helped advance our knowledge of DNA?

a)

Some genes are linked and passed down together

b)

DNA has a double helix structure

c)

Nucleotide consists of 3 parts: a sugar, phosphate, and nitrogenous base

d)

The proportions of adenine and thymine and the proportions of cytosine and guanine are the same in DNA

15.

What is the 1st step in protein synthesis?

a)

Amino acids string together to create proteins that build our traits

b)

DNA is copied into RNA inside the nucleus

c)

Ribosomes read the RNA strand that codes for a specific amino acid

d)

RNA leaves the nucleus and goes to a ribosome

16.

Which is the 2nd step in protein synthesis?

a)

Amino acids string together to create proteins that build our traits

b)

DNA is copied into RNA inside the nucleus

c)

Ribosomes read the RNA strand that codes for a specific amino acid

d)

RNA leaves the nucleus and goes to a ribosome

17.

Which is the 3rd step in protein synthesis?

a)

Amino acids string together to create proteins that build our traits

b)

DNA is copied into RNA inside the nucleus

c)

Ribosomes read the RNA strand that codes for a specific amino acid

d)

RNA leaves the nucleus and goes to a ribosome

18.

Which is the 4th (final) step in protein synthesis?

a)

Amino acids string together to create proteins that build our traits

b)

DNA is copied into RNA inside the nucleus

c)

Ribosomes read the RNA strand that codes for a specific amino acid

d)

RNA leaves the nucleus and goes to a ribosome

19.

During transcription, the DNA segment ACC GTA would produce which RNA strand?

a)

UGG CAU

b)

TGG CAT

c)

ACC GTA

d)

UGG AUG

20.

What structure is produced during the process of translation?

a)

Nucleotide

b)

Cell

c)

RNA

d)

Protein

21.

How many nucleotides code for an amino acid?

a)

1

b)

2

c)

3

d)

4

22.

Offspring grow from the stem, root, or leaf of the parent

a)

Budding

b)

Binary Fission

c)

Fragmentation

d)

Vegetative Reproduction

23.

Offspring grows out of the body of the parent and falls off

a)

Budding

b)

Binary Fission

c)

Fragmentation

d)

Vegetative Reproduction

24.

The body of the parents breaks into pieces that each form a new offspring

a)

Budding

b)

Binary Fission

c)

Fragmentation

d)

Vegetative Reproduction

25.

Parent cell splits into two halves, producing 2 new offspring

a)

Budding

b)

Binary Fission

c)

Fragmentation

d)

Vegetative Reproduction

26.

Check all that apply. Which statement is FALSE regarding the differences between sexual and asexual reproduction?

a)

Sexual reproduction requires 2 parents, while asexual only requires 1

b)

Sexual reproduction creates diverse offspring, while asexual produces identical offspring

c)

Compared to asexual reproduction, sexual reproduction better equips a species to survive changes in their environment

d)

Asexual reproduction is a product of meiosis, while sexual reproduction is a product of mitosis

27.

Which statement is TRUE about sex chromosomes?

a)

Males have two X chromosomes and females have an X and Y chromosome

b)

Females have two X chromosomes and males have an X and Y chromosome

c)

Both males and females contain one X and one Y chromosomes, but the males Y chromosomes is smaller

d)

Females only have one X chromosome while males have only one Y chromosomes

28.

Which statement is TRUE about mitosis and meiosis?

a)

Mitosis creates 4 diverse cells and meiosis creates 2 identical cells

b)

Mitosis creates 2 diverse cells and meiosis creates 4 identical cells

c)

Mitosis creates 4 identical cells and meiosis creates 2 diverse cells

d)

Mitosis creates 2 identical cells and meiosis creates 4 diverse cells

29.

Number of PAIRS of SEX chromosomes in humans

a)

1

b)

2

c)

23

d)

46

30.

Number of chromosomes a human gamete (sex cell)

a)

1

b)

2

c)

23

d)

46

31.

TOTAL number of chromosomes humans typically have

a)

1

b)

2

c)

23

d)

46

32.

Number of alleles (genes) a human typically has for each trait

a)

1

b)

2

c)

23

d)

46

33.

Number of alleles (genes) each parent passes to offspring for each trait

a)

1

b)

2

c)

23

d)

46

34.

Who is known as the Father of Genetics?

a)

Gregor Mendel

b)

Bill Nye

c)

Isaac Newton

d)

Albert Einstein

35.

Which of the following is FALSE regarding alleles?

a)

If a dominant allele for a trait is present, then that trait will always show.

b)

The genotype must be homozygous recessive for a recessive trait to show.

c)

If the genotype is heterozygous for a trait there is a 50% chance that the recessive trait will show.

d)

If a person shows a dominant trait that means there genotype is either heterozygous or homozygous dominant for that trait.

36.

Fur pattern

a)

Inherited trait

b)

Non-inherited trait

37.

Floppy ears

a)

Inherited trait

b)

Non-inherited trait

38.

Favorite Treat

a)

Inherited trait

b)

Non-inherited trait

39.

Catching a ball

a)

Inherited trait

b)

Non-inherited trait

40.

Paw size

a)

Inherited trait

b)

Non-inherited trait

41.

Heterozygous

a)

RR

b)

R

c)

Rr

d)

rr

42.

Homozygous dominant

a)

RR

b)

R

c)

Rr

d)

rr

43.

Homozygous recessive

a)

RR

b)

r

c)

Rr

d)

rr

44.

Below is a Punnett square for the ability to roll your tongue where T=can roll tongue and t=cannot roll tongue. What percentage chance will the offspring have of not being able to roll their tongue?

a)

0

b)

25

c)

50

d)

75

e)

100

45.

What is the genotype of the second parent in the Punnett square below?

a)

BB

b)

Bb

c)

bb

d)

b

46.

If an allergy to dust is a recessive trait (a), which genotypes could a person who is NOT allergic to dust have?

a)

AA or Aa

b)

Only aa

c)

AA or aa

d)

AA, Aa, or aa

47.

The ability to be a "Super Taster" is an inherited trait. If two heterozygous parents cross, their offspring have the potential to be a Super Taster (TT), Medium Taster (Tt), or Normal Taster (tt). This is an example of...

a)

Complete dominance

b)

Codominance

c)

Incomplete dominance

d)

Magic

48.

A blue fish reproduces with a red fish, creating offspring that are both red and blue. This is an example of...

a)

Codominance

b)

Incomplete dominance

c)

Complete dominance

d)

Magic

49.

What is the probability that the plant will be yellow?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

50.

What is the probability that the offspring will have a heterozygous genotype?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

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