Complex Genetics

What allele combination should go in the missing box?

• AA

• Aa

• aa

• none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following alleles is homozygous (purebred) recessive?

• Tt

• tt

• TT

• t

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

• recessive

• dominant

• lower case letter

• both 

What does heterozygous mean?

• An organism that has the same alleles(genes) for a trait.

• An organism that has different alleles(genes) for a trait.

• When neither gene is fully dominant; offspring is a mixture of both.

• The different forms of a trait.

Which of the following is homozygous dominant?

• Yy

• Y

• yy

• YY

An allele whose trait only shows up when no dominant allele is present.

• hidden allele

• dominant allele

• recessive allele

• present allele

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

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An organism’s genetic makeup or allele combination.

• Genotype

• Phenotype

• Beanotype

• Notype

An organism’s physical appearance, or visible traits. 

• Genotype

• Phenotype

• Beanotype

• Notype

Which of the following best describes a polygenic trait?

• A trait controlled by a single gene with multiple alleles

• A trait influenced by multiple genes, often resulting in a range of phenotypes

• A trait that is only expressed in the presence of a dominant allele

• A trait that is inherited from one parent only

Tags

NGSS.HS-LS4-3