Biology Answers

1. What is the significance of having no fat deposits between the skin and muscle for a frog in cold weather?

A cross was made between pure breeding plants differing in

two characters (colour and shape of seed) and the progenies

were inter-crossed to produce F2 population. Four types of

phenotypes; yellow round (1108), yellow wrinkled (382), green

round (366) and green wrinkled (140) were observed in F2.

A 59yr old man, Koosei was admitted unconscious to the emergency room from a local bar days after DNA tests revealed he was not the biological father of his 6 children. The bartender revealed that he is able to eat only a half-ball of kenkey and black pepper and drinks lots of Oyaw Bitters. Lab result: Test Result Interpretation Blood alcohol 550mg/dl high Plasma Glucose 50mg/dl low Blood lactate 8mmol/L high Blood pH 7.21 low

(i) Give a diagnosis of the clinical condition based on the lab findings. (4mks)

(ii) State the biochemical basis for each of these four (4) results? (8mks)

(iii) Name two (2) biochemical pathways which will be affected in this condition? (4mks)

(iv) How will these pathways be affected? (4mks)

Outline the significance of the formation of the triplex invasion to potential therapeutic applications.

Describe your understanding of a Hoogsteen pair and the formation of nucleic acid triplex. Is this held together by an intermolecular bond or an intramolecular bond? 

As we know that maximum recombinant frequency possible is 50% & in case of linked genes it is less than 50. But in Mendel's experiment in F2 (dihybrid) the recombinant frequency was 37.5% even though the genes were unlinked( on different chromosomes). Why it comes 37.5% and not 50%?

2 mitochondria like ______ shares an essential complex trait of using oxygen and breaking down food molecules

a) bacillus anthracis

b)clostridium botulinum

c)bacillus atrophaeus

d)bacillus atrophaeus and bacillus anthracis

Explain how PNAs could be used to control protein translation. Make specific reference to curricular concepts and vocabulary.

Do male drosophila give birth