Which of these human sex chromosome genotypes is not possible?

A) XXY
B) XXXY
C) XXXXY
D) XXX
E) YYYY


E) YYYY

Biology & Microbiology

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In which soil would the banana tree receive the most appropriate amount of water for its

needs?

a. soil A b. soil B c. soil C d. It would receive the appropriate amount of water from all the soil types.

Biology & Microbiology

What types of cells perform cell division?

a. prokaryotes only b. eukaryotes only c. both prokaryotes and eukaryotes d. neither prokaryotes, nor eukaryotes

Biology & Microbiology

Two true-breeding mutant strains of Drosophila have black body color instead of the wild-type gray yellow. When the two strains are crossed, all the F1 flies have wild-type body color. How can these data be interpreted?

A) Recombination occurred. B) Complementation occurred. C) The mutations involved are on two different genes. D) A new mutation occurred in all the offspring. E) Both B and C

Biology & Microbiology

A mature sperm consists of all of the following structures except:a

an acrosome. b. a flagellum. c. a head. d. an inguinal canal. e. a midpiece.

Biology & Microbiology