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Vitamin Is A precursor for
A)Haem
B)ATP
C)FAD
D)mg^2+
An enzyme that is produced in its activa form
A)EcoR1
B)Pepsin
C)Trypsin
D)Chymotrypsin
Why are the cell membrane, cytoplasm, and nucleus considered the major parts of the cell?

Questions.


1. Name any five challenges experienced by teenage mothers. Write full sentences. (5 marks).

2. Suggest any five advises that you can caution your peers about the consequences of teenage pregnancy (10 marks)


Reference is required.


In pea plants, yellow seeds (Y) are dominant over green seeds (y), and rounded peas (R) are dominant over wrinkled peas (r).

Cross a plant that is heterozygous for both traits with a plant that is homozygous recessive for both traits. Draw a Punnet Square to show all possible offspring and determine the genotypic and phenotypic ratios.


Suggest why the new isolated southern population of frogs could be considered a separate new species


Discuss the economic importance of parasistic infections
Compare amphibian brain with mammalian brain?

1.      explain  how does white blood cells instead of trapping cholesterol in coronary artery disease forms foamy cells and causes more inflammation and what foamy cells basically is?


2) What volume of 50 mM Na2HPO4 and 100 mM NaH2PO4 is needed to prepare 3L of 25 mM
phosphate buffer, pH 6.5 (pKa = 7.21)?
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