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NeX [460]
3 years ago
15

When analyzing three genes that reside on the same chromosome, the expected frequency of double-crossover events can be determin

ed by multiplying the frequency of single crossovers between each pair of genes. What would cause the number of observed double-crossover events to be less than the expected value?
Biology
1 answer:
statuscvo [17]3 years ago
8 0

Answer:

The answer is positive interference

Explanation:

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Vsevolod [243]

Answer:

A

Explanation:

Natural selection occurs when an environment makes organisms with certain traits more likely to survive and reproduce.

Asexual reproduction results in no genetic variation (meaning differences in traits, also called divserity). Genetic variation must be present for certain organisms to be better suited to their environment, because in its absence all organisms share the same traits. This rules out B, C, and D. I hope this helps :)

6 0
2 years ago
Epinephrine acts as a signal molecules that attaches to ____ proteins.
tia_tia [17]

Answer:

G-protein-linked receptor

Explanation:

Epinephrine acts via G-protein-linked receptors. The heterotrimeric G proteins located within the cell are activated by G protein-coupled receptors that span the cell membrane. Signaling molecules bind to a domain on the GPCR located outside the cell, and an intracellular GPCR domain then in turn activates a particular G protein.

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3 years ago
The collect data step of the scientific method comes before the hypothesis step. True or False?
matrenka [14]

Answer:

true after data collection you state your hypothesis

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