Biology, 24.02.2020 20:59 Coltong121
If DNA can be described as the instruction book for building an organism, which phrase best describes a gene?
A. A single letter in the instruction book
B. A three-letter word in the instruction book
C. A sentence in the instruction book
D. The paper the instruction book is written on
Answers: 2
Biology, 21.06.2019 20:30
Imagine ? person stepping on a pin and pulling his or her foot way look at the rΓ©flΓ©chir arc of the scenarios below
Answers: 1
Biology, 21.06.2019 21:10
Using the periodic table, determine which material is most likely a good conductor
Answers: 3
Biology, 22.06.2019 03:00
To answer this question, researchers studied populations of the dusky salamander (desmognathus ochrophaeus) living on different mountain ranges in the southern appalachian mountains. the researchers tested the reproductive isolation of pairs of salamander populations by leaving one male and one female together and later checking the females for the presence of sperm. four mating combinations were tested for each pair of populations (a and b)Γ’β¬βtwo within the same population (female a with male a and female b with male b) and two between populations (female a with male b and female b with male a). the proportion of successful matings for each mating combination was measured. for example, when all the matings of a particular combination were successful, the researchers gave it a value of 1; when none of the matings were successful, they gave it a value of 0. then the researchers calculated an index of reproductive isolation that ranged from 0 (no isolation) to 2 (full isolation). the reproductive isolation value for two populations is the sum of the proportion of successful matings of each type within populations (aa + bb) minus the sum of the proportion of successful matings of each type between populations (ab + ba). the table provides data for the geographic distances and reproductive isolation values for 27 pairs of dusky salamander populations.
Answers: 1
Biology, 22.06.2019 05:00
Idonβt know the answer and iβve been stuck on it for a while now skskskskks
Answers: 1
If DNA can be described as the instruction book for building an organism, which phrase best describe...
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