Answer:
a book falls of the table.......
Explanation:
Answer:
2.Less than 73% of the populations would have only one allele present.
Explanation:
The two alleles chosen do not affect the fitness of flies in the lab environment, so Kerr and Wright could be confident that if changes in the frequency of normal and forked phenotypes occurred, they would not be due to natural selection.
Using a larger breeding population would not be expected to alter the outcome of the experiment.
Answer:
The question lacks options and the incomplete punnet square; the incomplete punnet square has been added as an attachment while these are the options:
A) All red flowers
B) All pink flowers
C) 1 red : 3 pink flowers
D) 3 red : 1 pink flowers
The answer is D
Explanation:
According to the question, the genotype of a plant that produces red flower phenotype is about to be determined. For this flower colour gene, two alleles are involved in which the red color (R) allele is dominant over the pink color (r) allele I.e. the R allele will mask the expression of r allele in a heterozygous state.
The red-flowered plant with unknown genotype was crossed with a heterozygous red-flowered plant (Rr). Since a red flowered plant can either be Rr (heterozygous) or RR (homozygous), we use the Rr plant in the punnet square. The unknown genotype, assuming it has a Rr genotype, will produce RR, Rr, Rr and rr offsprings when crossed with another heterozygote (Rr).
These offsprings show a 3 red : 1 pink phenotypic ratio, making option D a valid prediction.
R r
R RR Rr
r Rr rr
Answer:
Rocks form through a variety of processes. These processes require energy. The best description of how the energy of Earth's interior contributes to the formation of rocks on its surface is the energy in the earth's interior melts rock, creating magma which cools back into rock when it reaches the surface
Correct Answer : Option A
Explanation:
The energy in the earth's interior melts rock, creating magma which cools back into rock when it reaches the surface is the formation of rock of igneous type and is processed via the cycle which is rock cycle. The rocks are being pushed deeper into interior of the Earth, where it melts down into magma.
When these magma are no longer in state to remain liquid, they start cooling and thereby, gets solidify as well. This solidification causes the formation of the rock again, which is of igneous type rock.