On the planet trogus, the population of trogites have an autosomal gene, hdz, with two alleles, t and t. t is dominant to t. individuals with the t allele in their genotype show a propensity for sorbet, while the remainder prefer ice cream. in multiple population studies, 60% of individuals with the tt genotype prefer sorbet, 25% of tt individuals prefer sorbet, and 5% of tt individuals prefer sorbet.

in an f1 cross of tt x tt genotyped individuals, in the f2population of individuals who prefer sorbet, what is the probability that a random individual has the tt genotype?

a. 0.991.

b. 0.141.

c. 0.435.

d. 0.044.

e. 0.522.

The correct option is C. 0.435

Explanation:

To get the results, let's make a punnet square and check the results. The parents in the cross will be heterozygous prefering sorbet. We can say that the alleles for sorbet are dominant over the alleles which prefer ice cream.

          T        t

T        TT       Tt

t         Tt        tt

The results show that there is 25% (0.25) probability that the individual will be homozygous preferring sorbet (TT). 25% (0.25) will have the probability of preferring ice- cream (tt).

50% (0.5) which is nearest to 0.435 will have the probability for having heterozygous alleles (Tt) and preferring sorbet,

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.