Answer:
B.
Explanation:
A tumor is essentially when damaged cells continue multiplying. So by smoking your risking both damaging your cells and turning of the p53 gene.
can i have brainliest?
Answer:
Genotype ( genetic appearance )
Explanation:
When some individuals of a population become isolated from the original population then the two groups are also not able to reproduce together due to difference in genotype, So variations and mutations which causes change in genotype that occur in one group are not necessarily found in the other group which leads to speciation. The longer the groups are isolated, the more different they are they eventually become different species called speciation. When some individuals of a specie remain isolated from the rest of the members due to any type of barrier ( physical or geological) in between the individuals of both the original species and currently isolated individuals so due to mutation the genotype of these individual changes and leads to speciation .
Answer:
Results in a hairpin loop structure in RNA, AND results in the polymerase falling off the DNA template.
Explanation:
As the RNA polymerase arrives at the terminator site, it pauses. The termination of RNA transcription occurs when an RNA transcript with a self-complementary sequence is formed leading to the formation of the hairpin structure. The hairpin structure has 15-20 nucleotides.
The hairpin structure of RNA weakens A=U base pairs in RNA-DNA hybrid and/or weakens the interaction between RNA and RNA polymerase. The overall effect is the dissociation of RNA polymerase from the complex and termination of the transcription.
Well, while it is true that the plant cell wall is rigid it's more important that it stretches. That's how it protects.
Answer:
A) 50%
B) 25%
C) Same 25%
Explanation:
a) Smith parents should be heterozygous to the eye color gene, this means, they each should carry a copy of the “brown eye” gene (that we will call B), and one of the “blue eyed” one (that we will call b). Since the blue eye is a recessive trait, you can assume that they both inherited b genes to the daughter. If we draw a Punnet square (Bb vs Bb), we will see the possibilities of Smith having a copy of the blue eye gene (Bb), and it is 50%.
b) Again, with a Punnet square (Bb vs bb) we see that the possibility of having a blue eyed baby is 50% IF Smith carries the copy of the b gene. But since that possibility is established to be 50%, therefore the possibility of the baby to have blue eyes is reduced by half to 25%
c) The probability is the same, it does not have an additive effect, so there is no effect on the number of children
