Specific segments of DNA that are the functional units of inheritance are called ________

A) chromosomes
B) genes
C) chromatids
D) telomeres


B

Biology & Microbiology

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Influencing the philosophy and analysis of many systematists in the mid-1900s, ____ published “Phylogenetic

Systematics,” arguing that classifications should be based solely on evolutionary relationships.

a. Carolus Linnaeus b. Willi Hennig c. Gregor Mendel d. Charles Darwin e. Ernst Mayr

Biology & Microbiology

In some fruit flies, an inversion involving the white-eyed locus (w) moves the w+gene from one end of the X chromosome to a location nearer to the centromere. Flies with a w+ or w+/w genotype are normally expected to have red eyes

However, in flies with the inversion, the eyes are mottled red and white. Explain why.

Biology & Microbiology

What leads to an individual having too many or two few chromosomes?

A) Crossing over B) Independent assortment C) Homologous recombination D) Nondisjunction

Biology & Microbiology

Which growth response causes the shoots of a plant grown in the dark to grow upward?

A) phototropism B) thigmotropism C) gravitropism

Biology & Microbiology