Genetics QUIZ

If an organism has 2 identical alleles for a particular trait then it is

• heterozygous

• homozygous

• hybrid

A pea plant that has 2 different alleles for a trait means they are

• homozygous

• heterozygous

• purebred

How many recessive alleles for a trait must an organism inherit in order to show that trait?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1

what is heredity?

• the passing of traits from parents to offspring

• the study of heredity

• the study of genetics

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is an allele?

• same forms of a gene

• different forms of a gene

• 3 letters

Tags

NGSS.HS-LS3-2

What is an example of a heterozygous genotype?

• AA

• aa

• AAaa

• Aa

The man who studied genetics and came up with genetics is

• Watson
• Crick
• Mendel
• Darwin

What is a phenotype

• The genetic make up (code)
• The physical trait

A cross of a Green chicken (GG) with a white chicken (WW) produces all speckled offspring (GW). This type of inheritance is known as

• incomplete dominance

• polygenic inheritance.

• codominance

• multiple alleles.

In humans, a male has...

• one X chromosome only.
• two X chromosomes
• one X chromosome and one Y chromosome
• two Y chromosomes.