Biochemistry Answers

C3b:

A) chemotactic. B) anaphylatoxin

C) opsonizes bacteria. D)the inactive form of C3

Why uracil concentration increases in ornithine transcorbamylase deficiency?

1. A rice breeder obtained a triple heterozygote carrying the three recessive alleles for albino flowers (al), brown awns (b), and fuzzy leaves (fu), all paired with their normal wild -type alleles. This triple heterozygote was testcrosses .The progeny phenotypes were:

Number Phenotypes Genotype

170 wild type al⁺ b⁺ fu⁺

150 albino, brown, al b fu

fuzzy

5 brown al⁺ b fu⁺

3 albino, fuzzy al b⁺ fu

710 albino al b⁺ fu⁺

698 brown, fuzzy al⁺ b fu

42 albino, brown al⁺ b⁺ fu

38 albino, brown al b fu⁺

I. Are any of the genes linked?

II. If they are linked, draw a map labelled with map distances

III.The triple heterozygote was originally made by crossing two pure lines . What were their genotypes?

IV. Calculate interference and say what you think of its signicane.

2. Consider the following segment of DNA, which is part of a much longer molecules constituting a chromosome:

5'....ATTCGTACGATCGACTGACTGACAGTC...3'

3'....TAAGCATGCTAGCTGACTGACTGTCAG....5'

a. which will be the template for the leading strand?

b. Which strand will be synthesized discontinuously?

c. Which strand will be synthesized as Okazaku fragments?

d. Draw the molecules when the DNA polymerase is halfway along this segment.

e. Draw the two complete daughter molecules.

Can you please explain the applications of Solubility in the Biology field?

Explain how to prepare 800 ml of 0.78 mmol/litre NAD+ (MW 655.43) solution

State the important of biological and scientific uses of radioisotopes

whats the connection between good bacteria and Fermentation, Cellular respiration, Photosynthesis, DNA replication and Protein synthesis?

How do you make 0.9% Saline from a Sodium chloride solution (5M in H2O)?

. What is the difference between a one-celled organism and a single cell of a multicelled organism?