In genetic drift,the allele frequencies in a gene pool change because of chance. Genetic drift is the variation of the allele and relative frequencies of different genotypes in a very small community or population, and focusing on the particular genes which did not produce or just happened to be gone.
B) Tree
Is the best answer
Answer
similar characters evolved owing to convergent evolution; similar characters are ancestral
Explanation:
Convergent evolution happens when two organisms belonging to different species, living at different times or different continents but the same biome develop analogous structures hence making them appear similar. The analogous structures were not present in the known ancestors of both groups.
Therefore convergent evolution is ignored during constructing phylogenies
Also similar characteristics that are ancestral are ignored.
The fraction of offspring that the Punnett square predict will be tall is ¾ (option C).
<h3>What is the punnet square?</h3>
The punnet square is a graphical representation used to determine the probability of an offspring expressing a particular genotype.
The punnet square is used to predict the percentage or proportion of offsprings of a cross that possess a specific genotype.
According to this question, a punnet square shows a cross between two tall pea plants. The allele for tall height (T) is said to be dominant while the allele for short height (t) is recessive.
If two heterozygous genotype crosses i.e. Tt × Tt, the percentage of offsprings that will be tall is 75% or ¾.
Therefore, the fraction of offspring that the Punnett square predict will be tall is ¾.
Learn more about punnet square at: brainly.com/question/23535291
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Looks like the question is asking how evolution of a specific species affects humans negatively.
<span>Think of co-evolution examples such as predator-prey and host-parasite relationships.
</span>One example that comes to mind is <span>the use of pesticides in agriculture. It has driven the evolution of resistant insects, requiring the use of harsher chemicals in greater quantity to kill them. This can have a harmful effect on agriculture and in turn affect humans negatively. Does that makes sense?</span>
