Biology Answers

1. The following population, C, has no limits on food resources or space:

Population size = 600 Births = 150 Deaths = 25

A. Calculate the r for this population if it is experiencing exponential growth

B. How many individuals will be in the population at the start of the second generation?

How many individuals will be in the population at the start of the third generation?

Now consider population D, in which food resources are limited and it is experiencing a logistic growth pattern. Population size = 500 rmax= the same for the previous problem (Population C). Carrying Capacity = 1,000 A. 

How many individuals would be in the population at the start of the second generation.

Calculate the number of individuals that would be in the population at the end of the third generation. 

What are the short term effects of Ablation?

Q1: Why a person with O blood group can donate blood to a patient with AB blood group but the opposite is impossible. Explain.

Q2:How does your body regulate the increase in the level of blood sugar after having a meal rich in carbohydrates. Focus on the relevant transporters. 

1. Evaluating the results for accuracy

In an experiment, the concentration of a protein in a solution was measured by a student to be 273µg/ml, but the true value of the concentration was 260µg/ml. What is the percent error in this measurement?

Relative error: (2 marks)

Comment on the accuracy: (2 marks)

2. Examine the following data set for the presence of outliers using the Q-test.(4 marks)

Replicate # Values

1 0.200

2 0.186

3 0.110

4 0.196

5 0.193

The importance of capping in translation is? a. Cap is identified by 30S subunit of the riboso b. Cap is identified by tRNA c. Cap is identified by 28S rRNA d. Cap is identified by 16S rRNA​

After separating DNA into monomeric units, which of the following should be broken to isolate nucleosides?

a. the ester bond between phosphate and sugar

b. the ester bond between base and sugar

c. the glycosidic bond between phosphate and sugar

d. the glycosidic bond between base and sugar

Which of the following texts proposed the possible origin of humans from monkeys?

a. Muqaddimah

b. Kitab-al Hayawan

c. De Generatione Animalium

d. De Generatione Humanis

Mendel chose peas because their reproductive structures allow self-fertilization through self-pollination. Why is this important for genetic studies?

a. to establish true-breeding strains to increase the chances of producing offspring.

b. to facilitate the hybridization process

c. to prevent the possibility of abortion among seeds

Smooth pods in peas is a dominant trait. Which of the following is not true about the genotype of the trait?

A. It is always heterozygous

B.Its allele will always mask the allele for a constricted pod

C. It can be either homozygous or heterozygous

D. It can manifest by having one copy of the allele

Who believed that humans can be traced by fossils?