Biology

1

100

The genotype of an individual with blood type O is __________.

ii

200

In female cells, most of the genes in one of the X chromosomes are randomly switched off, forming a dense region in the nucleus known as

Barr Body

300

Small group of birds is blown by a storm to a remote island, where they establish a new population. Over time, the allele frequencies in this island population become different from those in the original population. This is an example of:

The Founder effect

400

An individual’s success in passing genes to the next generation is called 

Evolutionary Fitness 

500

Phenotypes at the upper and lower ends of the curve have higher fitness than individuals near the middle.

Disruptive Selection

2

100

Colorblindness is more common in males than in females. True or False?

True

200

A karyotype would be most useful to diagnose:
A. Cystic fibrosis
B. Klinefelter syndrome
C. Sickle cell anemia
D. Huntington’s disease

Klinefelter syndrome

300

Result in gametes with an abnormal number of chromosomes, either more or less than normal

Nondisjunction

400

Chromosomes numbered 1 through 22 in humans are known as

autosomes

500

People with blood type AB can safely receive blood from all ABO blood groups. This blood type is known as 

universal acceptor 

3

100

Sickel cell anemia is a recessive or dominant disorder?

Recessive disorder

200

Sickle cell anemia is a chromosomal disorder. True or False.

False

300

In __________ infection, the virus replicates rapidly and causes the host cell to burst, releasing new viruses.

Lytic infection

400

In a __________ infection, viral DNA is inserted into the host cell's DNA and remains dormant for a period of time before becoming active.

Lysogenic infection

500

In a population in Hardy-Weinberg equilibrium, the frequency of the dominant allele is 0.7 and the frequency of the recessive allele is 0.3. What percentage of the population is expected to be heterozygous?

42%

4

100

Change in DNA sequence

Mutation

200

The resistant bacteria survive and reproduce, passing the resistance trait to their offspring. This is called

Natural Selection

300

The notation for Turner syndrome is: 

45, XO

400

A population of beetles contains both green and brown individuals. A sudden wildfire destroys most of the habitat and kills a large portion of the beetles by chance. Only a few beetles survive, and most of them happen to be brown

Bottleneck Effect 

500

ndividuals who are heterozygous for the sickle cell allele have increased protection against __________.

Malaria