D) Diffusion helps gas exchange to occur
Answer:
3
Explanation:
ribosome
message is sent from nucleus to the ribosome
Answer:
Option A
Explanation:
Chloroplasts are always located in the cytoplasm of the cell.
Explanation:
Precision can be defined as ability to reproduce a set of results.
The archer would be more precise if all his shots are in a particular place.
Accuracy is a measure of how close the shot is to the target.
The closer the shot to the target, the more accurate it is.
- A contestant with a good precision but poor accuracy implies that most of his shots are far away from the target(poor accuracy).
- Also, the shots are clustered and likely hits a particular spot(precision)
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Answer:
B) 300
Explanation:
There are two types of alleles present for wing type in this population of Drosophila, c and c+. Various combinations of these two alleles will produce different phenotypes.
c+c+ : straight wings = 45
c+c: straight wings = 70
cc: curly wings = 35
Total flies = 150
Each fly has one gene with two alleles for wing type. Hence 150 flies will have 300 alleles in the gene pool.
