Genetics-Practice questions

What is heredity?

• A kind of genetic disorder
• The way DNA divides
• A trait you inherit from your parents
• The passing down of traits from parents to children

What is the relationship between DNA and chromosomes?

• Chromosomes are made of DNA
• DNA is made of chromosomes
• DNA and chromosomes are the same thing.
• All of the above are correct

Tags

NGSS.HS-LS3-1

Why are your chromosomes arranged in pairs?

• Scientists have no idea
• Because you get one from your mom and one from your dad
• Because pairs can divide easier
• Because DNA is awesome

The man who studied genetics and came up with genetics is

• Watson
• Crick
• Mendel
• Darwin

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

Squidward has light blue skin, and his genotype for this trait is Bb. Which of the following would describe Squidward?

• Purebred

• Hybrid

• Homozygous

• Sex-linked

An offspring will receive how many alleles from each parent to determine a specific trait?

• one
• two
• three
• five

Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

What is a phenotype

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

having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome