What is the probability that the offspring of a cross between a homozygous recessive parent and heterozygous parent will be homozygous recessive?

A.) 1/1
B.) 1/2
C.) 1/4
D.) 1/8


Answer: B.) 1/2

Biology & Microbiology

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When dealing with stable isotopes, enzymes tend to favor

A) the lighter isotope. B) the heavier isotope. C) the isotopes in about equal proportions. D) either the lighter or the heavier isotope, depending on environmental conditions.

Biology & Microbiology

Whole genome sequencing is often approached by a shotgun sequencing approach in which:

A. large genomes are randomly digested, short fragments are sequenced, and the overlapping sequences are assembled in order. B. large genomes are digested only once, large fragments are sequenced, and the overlapping sequences are assembled in order. C. large genomes are randomly digested, short fragments are sequenced, and the overlapping sequences are assembled from largest to smallest. D. large genomes are randomly digested, short fragments are sequenced, and the overlapping sequences are assembled from smallest to largest. E. All of the answer options are correct.

Biology & Microbiology

Achondroplasia, a hereditary form of dwarfism, is an autosomal dominant disorder; however homozygous dominant

individuals either die before birth or very shortly thereafter. The homozygous recessive condition is normal. A dwarf couple decide to have children. Use this information to answer the following question:Of the children of this couple who survive, what is the probability that they will be normal?

a. 0 b. ¼ c. 1/3 d. 2/3 e. ½

Biology & Microbiology

Many gyms are abundantly supplied with towels and antimicrobial sprays for wiping down equipment after each user.  The reason for this is to cut down on the transmission of ________.

A. skin microbes like MRSA B. athlete's foot fungus C. measles virus D. shingles E. ringworm

Biology & Microbiology