1
The genotype of an individual with blood type O is __________.
ii
Colorblindness is more common in males than in females. True or False?
True
Sickel cell anemia is a recessive or dominant disorder?
Recessive disorder
Change in DNA sequence
Mutation
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
A karyotype would be most useful to diagnose:
A. Cystic fibrosis
B. Klinefelter syndrome
C. Sickle cell anemia
D. Huntington’s disease
Klinefelter syndrome
Sickle cell anemia is a chromosomal disorder. True or False.
False
The resistant bacteria survive and reproduce, passing the resistance trait to their offspring. This is called
Natural Selection
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
Result in gametes with an abnormal number of chromosomes, either more or less than normal
Nondisjunction
In __________ infection, the virus replicates rapidly and causes the host cell to burst, releasing new viruses.
Lytic infection
The notation for Turner syndrome is:
45, XO
An individual’s success in passing genes to the next generation is called
Evolutionary Fitness
Chromosomes numbered 1 through 22 in humans are known as
autosomes
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
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
Phenotypes at the upper and lower ends of the curve have higher fitness than individuals near the middle.
Disruptive Selection
People with blood type AB can safely receive blood from all ABO blood groups. This blood type is known as
universal acceptor
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%
ndividuals who are heterozygous for the sickle cell allele have increased protection against __________.
Malaria