Populations, Evolutions & Genetics Random Retrieval

Which type of plants are more likely to be the pioneer species in secondary succession?

True or false : Succession involves only the change of biotic factors ( Not abiotic).

Which of the following is not an assumption that affects the accuracy of the Mark Release Recapture population estimate?

Population growth can be exponential . How would we turn a curved population curve into a straight line graph?

Is predation a biotic or abiotic factor that effects population size?

Was the cold winter an example of an abiotic factor or a biotic one?

Which of the following is an abiotic factor which effects population size?

Is the following an 'Abiotic adaptation' or a 'Biotic Adaptation': Monarch butterflies fly south when the number of daylight hours shorten?

True or False : Two different species cannot occupy the same niche?

What is the word used to describe 'The specific role of a species within its habitat'?

What type of population does genetic drift have the greatest effect on?

Natural selection can change allele frequencies over time, due to those with the best alleles surviving and reproducing. What is the term used to describe the 'chance' or 'random' selection of alleles in a population?

Which type of selection is shown by fossils of black bears, showing them becoming bigger during glacial periods ( ice ages)?

Tay Sachs is a recessive disease which leads to the build up of certain lipids which eventually become toxic. The Cajun community in the USA has an incidence of about 1 in every 3,500 births. What is the allele frequency of the normal healthy genes?

An Ethiopian breed of cattle has low whey protein in its milk. This is controlled by a dominant allele (M). If 6 % of the herd have low whey protein, what proportion are heterozygotes?

In the actual ratio of 6:1:1:6, there were more of the ginger and black eyed hamsters and more of the white with red eyed hamsters than expected. Therefore, there are proportionately fewer of the mixed traits (Ginger and red eyes and white with black eyes). What process allowed those few mixed trait offspring to occur?

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

How can you tell from a pedigree (family tree) that a trait is sex linked?

If B = black, W = white and BW = speckled feathers in hens. Two heterozygous speckled hens mated, what will the ratios be of offspring that are black : speckled : white?

What is the definition of 'genotype'?