Modern Genetics

How many chromosomes do humans have?

• 23

• 24

• 48

• 46

Tags

NGSS.HS-LS3-1

Gene that does NOT "show" even though it is present is called

• chromosome

• recessive

• dominant

• codominant

Lili has a black dog. If black hair for the type of dog is dominant, what CANNOT be the dog's genotype if the alleles are written with the letter H?

• HH

• hh

• Hh

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is the correct definition of a genotype?

• the physical expression of a gene

• a strand of DNA made up of multiple mutations

• the set of genes in our DNA which is responsible for a particular trait

• karyotype

What are two major causes of genetic disorders in humans?

• mutations in the DNA of genes

• nuclear radiation

• changes in the overall structure of number of chromosomes

• incorrect Punnett squares

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is genetic engineering?

• the manipulation of an organism's genes

• a random and abrupt disruption to DNA

• a change in an organism's genes

• the manipulation of an organism's appearance.

What is this a picture of?

• Pedigree

• Punnett square

• karyotype

• cladogram

Tags

NGSS.HS-LS3-1

What genetic disorder might this person have?

• hemophilia

• Down syndrome

• sickle cell anemia

• cystic fibrosis

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Why are males more likely to have hemophilia than females?

• The gene is on the Y chromosome

• Males get hurt more often than females.

• The gene is on the X chromosome and males have only one X chromosome

• The gene is dominant for makes and recessive for females.

Tags

NGSS.HS-LS3-1

Genes that are found on the human X or Y chromosome are called

• genes

• chromosomal genes

• somatic genes

• sex-linked genes