If black fur color is controlled by a dominant allele

(B) and brown by its recessive allele (b), give the
genotypes of the parents and offspring of a cross of a
black male with a brown female that produces 1/2
black offspring and 1/2 brown offspring. What will be an ideal response?


Answer: Black male (Bb) x brown female (bb)
offspring: black (Bb) brown (bb)

Biology & Microbiology

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It is clear from current research on human behavior genetics that _____

a. animal models of human disease are not useful for behavior research b. epigenetics does not play a significant role in behavior disorders c. few abnormal behaviors have an environmental component d. most abnormal behaviors are due to single-gene effects e. abnormal behaviors are not due to single-gene effects

Biology & Microbiology

Osteogenesis imperfecta, also known as "brittle bone disease," is caused by a genetic defect in the gene that encodes a major fibrous protein found in bone called ________

Fill in the blank(s) with correct word

Biology & Microbiology

Which of the following never have cell walls?

A) algae B) animal cells C) archaea D) bacteria E) fungi

Biology & Microbiology

Distribution of daughter chromosomes derived from sister chromatids during meiosis II then leads to a total of ______ new cells, each with the haploid number of chromosomes.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology