Populations, Evolutions & Genetics Random Retrieval

What is lichen made out of ?

At which stage will abiotic factors be most hostile?

What term do we use to describe lichen and mosses in succession?

Was the reduction in insects caused by the cold weather an abiotic factor or a biotic factor?

Is the following an 'Abiotic adaptation' or a 'Biotic Adaptation': The Warbler Finch has a short slender beak for catching insects whilst, flying. Where as the Large Ground Finch has a strong , deep beak for crushing seeds.

Which of the following isn't an example of genetic drift?

What type of variation is show in the graph?

What type of variation is show in the graph?

In peppered moths, having light coloured wings is dominant. In Sheffield (an industrial northern town in the UK) a sample of moths was taken. The numbers collected were 73 light coloured , and 326 dark coloured. What is the allele frequency ( as a decimal) of the light allele in the population?

Drosophila fruit flies can have either vestigial wings (w)or wild-type wings (W). If 20% of the population have vestigial wings, what proportion of the population are homozygous dominant?

What does 'p' represent ?

What is the probability of a colour- blind father and a homozygous dominant female having a colour blind child?

Being colour blind is a sex-linked disorder. What is the probability of an unaffected male having a colour- blind child with a heterozygous female?

Marfan Syndrome ( TGF Beta) is dominant (T) to the healthy recessive allele(t) . Having a V shaped hairline (V) is dominant to having a straight hairline (v). What is the percentage probability of the offspring of a father = TtVv and a mother = TtVv would have Marfan Syndrome and a straight hair - line ?

Marfan syndrome is a dominant inherited disorder, where the suffer develops an increase in a growth factor ( TGF - beta) which effects connective tissue. What is the probability of a healthy mother and a heterozygous father having a healthy child?

In Guinea pigs, ginger(G) hair is dominant to white(g), and short hair (S) is dominant to long (s). In the following cross: GgSs and GgSS, what percentage chance will the offspring being born long haired and ginger?

In Guinea pigs, ginger(G) hair is dominant to white(g), and short hair (S) is dominant to long (s). In the following cross: GgSs and GgSS, what percentage chance will the offspring being born short haired and white?

How can you tell when an allele is recessive in a pedigree (a family tree)?

What is the best definition of a 'recessive allele'?

What is the definition of 'phenotype'?