Human Genetics

The diagram below represents the karyotype of a person with a genetic disorder.

Which is the likely cause of this condition? (3.2.2)

• nondisjunction during mitosis

• nondisjunction during meiosis

• chromosomal deletion during mitosis

• chromosomal deletion during meiosis

Tags

NGSS.HS-LS3-2

All organisms begin as a single cell. After dividing many times, differentiation occurs. During the process of differentiation, (1.1.3)

• some genes are turned on, others are turned off

• genes are removed from some cells

• DNA is modified to contain different genes

Tags

NGSS.HS-LS1-4

A human egg cell might contain (3.2.1)

• 22 autosomes and an X chromosome

• 22 autosomes and a Y chromosome

• 45 autosomes and an X chromosome

• 45 autosomes and a Y chromosome

Tags

NGSS.HS-LS3-1

Which of the following genetic conditions is screened for in all newborns because it can be completely controlled by diet? (3.2.3)

• skin cancer

• diabetes

• heart disease

• PKU

Tags

NGSS.HS-LS3-2

A pair of identical twins were separated at birth and raised by different parents. Both were found to have the gene for type II diabetes, but only one developed the disease. What could explain this? (3.2.3)

• mutation and genetic recombination

• independent assortment

• environmental influence

• segregation of alleles

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-5

Human males are much more likely to have hemophilia than human females. This is the case because: (3.2.2)

• the gene for hemophilia is carried on the Y chromosome

• hemophilia is carried on autosomes

• the gene for hemophilia is sex-linked

• hemophilia is a contagious disease to which males are more susceptible

Which of the following statements can be determined from the karyotype below? (3.2.2)

• it is a normal female

• it is a female with Down Syndrome

• it is a normal male

• it is a male with Down Syndrome

Chromosomal disorder where a male has an extra X chromosome(3.2.2)

• Down syndrome

• Turners

• Jacobs

• Klinefelter's

What is the name of the human chromosomal disorder that results in an extra chromosome #21? (3.2.1)

• Down syndrome

• Turners

• Jacobs

• Klinefelter's

Achondroplasia is a dominant human disorder that results in dwarfism. If two people that are heterozygous for achondroplasia have a child, what is the probability it will be tall? (3.2.1)

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3