Genetics

A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?

• 25%
• 50%
• 75%
• 100%

What does heterozygous mean?

• An organism that has the same genes for a trait (TT or tt)
• An organism that has different genes for a trait (Tt)
• When neither gene is fully dominant; offspring is a mixture of both
• the different forms of a trait (hair color--> brown, blonde, red

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?

• 100% Tt
• 50% Tt, 50% tt
• 75%Tt, 25%tt
• 25%TT, 50%Tt, 25%tt

A heterozygous yellow pea plant's genotype would be:

• YY
• yy
• Yy
• Yg

The sex of an offspring is determined by ______________________.

• the mother
• the father
• the mother and the father
• by the environment

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

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

• one
• two
• three
• five

If green is dominant over purple, then what is the genotype for this individual?

• Purple
• Green
• GG
• gg

Tags

NGSS.HS-LS3-1

Which is the correct phenotype for this organism?

• BB
• blue
• green
• bb

Tags

NGSS.HS-LS3-1

The man who studied genetics and came up with genetics is

• Watson
• Crick
• Mendel
• Darwin