Quiz about Year 10 Biology Revision

Question 1

DNA is an acronym for _____

Accepted Answer

Deoxyribonucleic Acid

Answer

Diphosphorus Nucleic Acid

Answer

Ribose Nucleic Acid

Answer

Deoxyribonucleic Acetate

Question 2

Which of the following is a base pair?

Accepted Answer

Cytosine - Guanine

Answer

Adenine - Cytosine

Answer

Cytosine - Thymine

Answer

Deoxyribose - Cytosine

Question 3

A nucleotide is composed of

Accepted Answer

A phosphate, sugar and nitrogenous base

Answer

A protein, protein and Guanine

Answer

A phosphate, Adenine, and nitrogenous base

Answer

A protein, Adenine and nitrogenous base

Question 4

Which of the following best describes a DNA molecule?

Accepted Answer

double helix

Answer

contains ribose

Answer

made of amino acids

Answer

contains Uracil

Question 5

Which of the following units are repeatedly joined together to form a strand of DNA? (This is the MONOMER of DNA.)

Accepted Answer

nucleotides

Answer

amino acids

Answer

fatty acids

Answer

polysaccharides

Question 6

Adenine bonds with ______________.

Accepted Answer

Thymine

Answer

Guanine

Answer

Cytosine

Answer

Adenine

Question 7

Guanine bonds with ______________.

Accepted Answer

Cytosine

Answer

Adenine

Answer

Guanine

Answer

Thymine

Question 8

What are the 4 nitrogen bases?

Accepted Answer

adenine, thymine cytosine, and guanine

Answer

adenine, thymine, cytoplasm, and guanine

Answer

adenine, thymine, cytosine, and gylcerol

Answer

adenine, thymine, cytosine, and glucose

Question 9

Which organelle is DNA usually found in?

Accepted Answer

nucleus

Answer

cell membrane

Answer

vacuole

Answer

chloroplast

Question 10

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

Accepted Answer

TAC ACT GTC

Answer

ATG TGA CAG

Answer

GTA AGT GAC

Answer

CAT TCA CTG

Question 11

How many pairs of chromosomes do humans have?

Accepted Answer

23

Answer

46

Answer

24

Answer

48

Question 12

What type of bonds cause the nitrogen bases in DNA to stick together?

Accepted Answer

Weak hydrogen bonds

Answer

Strong covalent bonds

Answer

Metallic bonds

Answer

Ionic bonds

Question 13

The sequence of bases in the DNA is most important for which of the following?

Accepted Answer

Providing the instructions for the traits of an organism

Answer

Preventing mutations from occurring during DNA replication

Answer

Allowing the DNA to have the shape necessary for the replication

Answer

Helping form the sugar-phosphate backbone of DNA molecules

Question 14

How does DNA in cells determine an organism's complex traits?

Accepted Answer

DNA contains codes for proteins, which are necessary for the growth and functioning of an organism

Answer

DNA separates into long single strands that make up each part of an organism

Answer

DNA produces the energy an organism needs to grow

Answer

DNA folds into the nucleus of each of the cells organism

Question 15

The process of making a copy of DNA if referred to as:

Accepted Answer

DNA replication

Answer

transcription

Answer

double helix

Answer

replication fork

Question 16

Primary functions of DNA are (mark all that apply)

Accepted Answer

Transmit information on heredity from one generation to the next

Accepted Answer

Provide a blueprint for making proteins

Answer

Control cellular respiration

Answer

Regulate homeostasis

Question 17

Why do we squish the strawberry well for a few minutes?

Accepted Answer

to break the cell walls

Answer

to break the nuclear membrane

Answer

to dissolve the nuclear  membrane

Answer

to isolate the DNA from the nucleus

Question 18

Why do we add detergent or soap to the squished strawberries?

Accepted Answer

to dissolve the nuclear membrane

Answer

to break up the cell walls

Answer

to clean the strawberry

Answer

to isolate the DNA

Question 19

The enzyme that unzips the DNA to prepare for replication

Accepted Answer

helicase

Answer

replicase

Answer

polymerase

Answer

synthase

Question 20

DNA replication results in two DNA molecules,

Accepted Answer

each one with one new strand and one original strand

Answer

each one with two original strands

Answer

each one with two new strands

Answer

one with two new strands and the other with two original strands

Question 21

Which enzyme is responsible for adding nucleotides?

Accepted Answer

DNA Polymerase

Answer

Topoisomerase

Answer

Ligase

Answer

Primase

Question 22

What enzyme glues the new parts of the DNA helix back together?

Accepted Answer

Ligase

Answer

Helicase

Answer

Primase

Question 23

What do you call one segment (piece) of DNA that codes for one genetic trait?

Accepted Answer

a gene

Answer

a chromosome

Question 24

This type of allele will ALWAYS be expressed (shown) as a trait whenever it is present.

Accepted Answer

a dominant allele

Answer

a recessive allele

Question 25

This type of allele will ONLY be expressed (shown) when there are two of them.

Accepted Answer

recessive allele

Answer

dominant allele

Question 26

Different forms of a gene.

Accepted Answer

Allele

Answer

Trait

Answer

Gene

Answer

Aquired Trait

Question 27

An organism with two different alleles for a trait is called

Accepted Answer

Heterozygous

Answer

Homozygous

Question 28

An organism with two of the same alleles for a trait is called

Accepted Answer

Homozygous

Answer

Heterozygous

Question 29

True or False: Homozygous can have two dominant alleles or two recessive alleles.

Accepted Answer

True

Answer

False

Question 30

Is TT homozygous or heterozygous

Accepted Answer

Homozygous

Answer

Heterozygous

Question 31

True or False: GG and Gg are both examples of heterozygous.

Accepted Answer

False

Answer

True

Question 32

Which of the following is the correct definition for a genotype?

Accepted Answer

The set of genes in our DNA which is responsible for a particular trait.

Answer

The physical expression of a gene. (Characteristics)

Answer

A strand of DNA made up of multiple mutations.

Answer

The expression of one of your parents traits.

Question 33

Which of the following genotypes is homozygous dominant?

Accepted Answer

AA

Answer

A

Answer

Aa

Answer

aa

Question 34

Look at the picture. The probability that a child will inherit the recessive trait is

Accepted Answer

25%

Answer

50%

Answer

75%

Answer

100%

Question 35

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 36

Aa, DD, bB, yy are all examples of

Accepted Answer

genotypes

Answer

phenotypes

Question 37

Hair colour is an example of

Accepted Answer

phenotype

Answer

genotype

Question 38

This is an example of ___________?

Accepted Answer

Incomplete dominance

Answer

Co-Dominance

Question 39

This is an example of ___________.

Accepted Answer

Codominance

Answer

Incomplete Dominance

Question 40

What type of inheritance do two alleles have if their traits blend together?

Accepted Answer

Incomplete Dominance

Answer

Co-Dominance

Question 41

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

Accepted Answer

Co dominance

Answer

Incomplete Dominance

Question 42

What type of inheritance do two alleles have if their traits blend together?

Accepted Answer

Incomplete Dominance

Answer

Co-Dominance

Answer

Mendelian Inheritance

Answer

Homozygous Inheritance

Question 43

This type of inheritance pattern shows BOTH traits in possible offspring

Accepted Answer

co-dominance

Answer

complete dominance

Answer

incomplete dominance

Answer

dominant pattern

Question 44

#2

Accepted Answer

Hydrogen Bond

Answer

Covalent Bond

Answer

Nucleotide

Answer

Phosphate

Question 45

In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?

Accepted Answer

Tall = T
Short = t

Answer

Tall = T
Short = S

Answer

Tall = t
Short = T

Answer

Tall = TT
Short = tt

Question 46

What is the genotypic ratio of the offspring?

Accepted Answer

1:2:1

Answer

3:1

Answer

1:3

Answer

2:2

Question 47

What is the probability of heterozygous offspring?

Accepted Answer

50%

Answer

25%

Answer

0%

Answer

100%

Question 48

What allele combination should go in the missing box?

Accepted Answer

Aa

Answer

AA

Answer

aa

Answer

none of these

Question 49

Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?

Accepted Answer

25%

Answer

1%

Answer

10%

Answer

0%

Question 50

What is the phenotype of the offspring? (A-Brown hair; a-blond hair)

Accepted Answer

75 % Brown Hair and 25% Blond Hair

Answer

50 % Brown Hair and 50% Blond Hair

Answer

25 % Brown Hair and 75% Blond Hair

Answer

0% Brown Hair and 100% Blond Hair

Question 51

A plant species has two alleles for leaf shape: Curly (C) and flat (c). The Curly (C) allele exhibits incomplete dominance. The intermediate phenotype is wrinkled leaves.
Based on the following Punnett Square, what is the probability that an offspring will be homozygous recessive?
Given your answer to the nearest percentage.

Accepted Answer

50%

Answer

100%

Answer

25%

Answer

0%

Question 52

A plant species has two alleles for flower color: Red (R) and White (r). The Red (R) allele exhibits complete dominance. Based on the following Punnett Square, what is the probability that an offspring will be heterozygous?
Given your answer to the nearest percentage.

Accepted Answer

50%

Answer

100%

Answer

75%

Answer

25%

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