speciation and gene expression

the graph shows the effect of methylation on the expression of MT1E, a gene involved in control of prostate cancer… what are the effects of Mt1E methylation

it reduces transcription of MT1E, increasing risk of prostate cancer

polyploidy has been a cause of rapid speciation in some plant genera. which observation is evidence that speciation has occurred

fertilization can occur between polyploid individuals

what can lead to the emergence of analogous structures

convergent evolution of unrelated species

what is a possible cause of abrubt speciation

polyploidy

the wings of bats and insects have both evolved for flight. the bats have bones to strengthen their wings and insects have veins. what is a valid comparison of bat and insect wings

they are analogous structures as both allow flight

methlyation of DNA in sperm and egg is removed immediately after fertilization. what is the reason for this

it allows expression of genes linked to early development

two kinds of wolf spider rub specialized body parts together in order to produce distinct sounds to attract females… what can be hypothesized

1, 2, and 3

what could be used as evidence for evolution

1, 2, and 3

what is the difference between DNA of adult identical twins

methylation patterns

what are the evolutionary orgins and functions of homologous structures

common origin, same or different function

which is an example of speciation

evolution of different courtship behaviours in separate populations of the cricket

which evolutionary pattern is most likely to results in the evolution of analogous structures in species W and Z

two lines that dont intersect