Biology Midterm 24-25

Front

What is hemophilia?

Back

Hemophilia is a recessive X-linked disorder that affects the blood's ability to clot, leading to excessive bleeding.

Front

What genotype represents a female who is a carrier for hemophilia?

Back

X^H X^h

Front

What genotype represents a male with hemophilia?

Back

X^h Y

Front

If an egg cell of an organism contains 12 chromosomes, how many chromosomes are in a heart cell of the same organism?

Back

24

Front

What is a Punnett Square used for?

Back

A Punnett Square is used to predict the genotypes of offspring from a genetic cross.

Front

What would the genotype ratio be for a Punnett Square showing 2Bb and 2bb?

Back

2Bb:2bb

Front

What is the definition of a genotype?

Back

A genotype is the genetic constitution of an individual, represented by the alleles inherited from parents.

Front

What is the definition of a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

How has antibiotic resistance changed over time?

Back

Bacteria are becoming more resistant to the antibiotics that are being prescribed.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even if only one copy is present, while recessive alleles require two copies to express their trait.