Genetics 1
Genetics 2
Genetics 3
Genetics 4
Genetics 5
100

Name the four different nitrogenous bases that make up DNA.

adenine (A), cytosine (C), guanine (G), and thymine (T)

100

What would be the opposite nitrogenous base pair sequence for the following sequence: C-T-T-G

G-A-A-C

100

How many chromosomes are inherited from your dad (via the sperm) in a healthy individual.

23 chromosomes

100
This is the study of heredity
genetics
100
TT and tt are both examples of a ___________ trait.
purebred/homozygous
100
What is another word for heterozygous?
hybrid
100

Who is known as the "Father of Evolution"?

Charles Darwin

100

This occurs when egg and sperm join to make offspring.

fertilization

100

The word that defines an organism's genetic makeup.

Genotype

100
This is an organism's physical appearance.
Phenotype
100
What did Gregor Mendel cross-pollinate in his genetics experiments?
Plants / pea plants
100
An organism with 2 different alleles for a trait is called a ______.
Hybrid/heterozygous
100
This shows all of the possible outcomes of a genetic cross.
Punnett square
100
This type of organism has 2 different alleles for a trait
Heterozygous
100

What happens when a recessive allele is paired up with a dominant allele?

It is hidden / doesn't show up

100

This is a word that describes how likely it is that a certain genetic combination will occur.

Probability

100
This type of organism has 2 dominant alleles for a trait.
Homozygous dominant
100

How many chromosomes are present in a fertilised egg?

23 pairs of chromosomes ( = 46 Chromosomes)

100

When a trait is unlikely to be expressed in the next generation it is known as a ____________ gene.

recessive

100

Which of the following would be expressed in the phenotype of the next generation with a high probability and why:

- blue eyes
- brown eyes
- green eyes

brown eyes are a dominant gene

100
This is the passing of physical characteristics from parent to offspring.
Heredity
100
This was the scientist who first began studying heredity and genetics.
Gregor Mendel
100
Different forms of a gene.
alleles
100

Neither trait is dominant over the other and the two blend together.

Incomplete Dominance

100
Factors that control traits are called.....
Genes
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