Biology Answers

Explain the concept of ‘multiple alleles’. Use the ABO blood grouping system to illustrate your answer. Produce a table to illustrate all possible phenotypes and their respective genotypes

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All cells exist in life. Discuss. (50)

Reflect on the importance of organic compounds in living beings and answer: Do you think that the human being is similar to a bacterium or a plant? Justify your answer.

1. define in your own words what the scientific method is
2. what is the difference between a fact and a hypothesis

Outline Mendel's first law.

Briefly explain the terms,

• monohybrid inheritance

• dominant and recessive

• genotype and phenotype

• homozygous and heterozygous

Use specific examples with genetic notation to illustrate your answer and show links between the terms

(A) Mendel’s 1st law - state

(b) Accurate definition of each term and link between them

(c) Illustration and explanation of test cross.

(d) Explanation of multiple alleles and table

Why are Europeans and especially the English affected by asthma?

For the purposes of the cell adhesion experiment, the cells are then diluted in media such that a 200 µl volume contains 9 x 103 cells. This volume is then added per well for the cell adhesion assay. In total, you will test 40 wells of endothelial cells from each genotype for each experimental condition (with or without TNFα).

Explain what is the problems or challenges of habitat fragmentation?

Hominin evolution is a very complex process, as our lineage is full of evolutionary dead ends and side branches. However, thanks to anthropologists, historians, geologists and many other branches of science, most of the beginning of human history is no longer a grey area of scientific research.

Write a 2,000 word essay (not including references) on:

How did we evolved into the big-brained modern ape that we are today?

Essay should include:

The essay should include details such as when humans and apes split, you should also provide details on Australopithecines and early species of Homo genus as well as discussing our most recent extinct relatives, Homo neanderthalis.