Nucleic acid is polymer of nucleotides. Discovery A German Chemist. Friedrich Miescher. discovered Nucleic in 1869. Ile discovered DNA only four years after the publication of Menders work. Miescher extracted…
Proteins are polymers of .amino acids. The name of proteins is derived from the Greek word called prokios. It means first place. Proteins always contain atoms of carbon, hydrogen, nitrogen.…
Lipids are nonpolar organic molecules that are insoluble in polar water but soluble in nonpolar organic solvents like ether, alcohol, and chloroform. Lipids show hydrophobic behavior. The behaviour is associated…
Carbohydrates are polyhydroxy aldehydes or ketones. Carbohydrates are sugars and their polymers. They are composed of carbon, hydrogen and oxygen. The word carbohydrates literally mean hydrated carbons. The ratio of…
Multiple Choice Questions (MCQs) I. Sex chromosomes were discovered by: (a) Carl Correns (b) Nilsson Fhle(c) 1.1 1. Morgan (d) Mendel The J shaped chromosome in drosophila is: (a) Autosomes…
How many chromosomes are present in male and female grasshopper? A ns: The numbers of chromosomes in male are 23. It has I I pairs and one X chromosome. So…
1.What is sex linked inheritance? Discuss its different types. Discuss sex linkage in drosophila. Discuss genetics of colour blindness in man. Discuss different pattern of sex determination. Describe ZZ-ZW system…
TERMS DEFINITIONS Sex linkage The genes present on the sex chromosomes are called sex linked gene and this phenomenon is know. as sex linkage. Reciprocal cross A cross in %vhich…
The traits limited to only one sex due to anatomical differences are called a sex limited treat. Such trait affects a structure or function of the body of males or…
This type of sex — determination pattern is common in birds. butterflies and moths. It was discovered by .1. Seiler in 19 14 in 1110111. It is the reverse of…
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