It is an autosomal aneuploidy (Failure of segregation of chromatids during cell division cycle results in the gain or loss of a chromosome ). Read More …
Category: Class 12
Using Punnet Square, work out the distribution of phenotypic features in the first filial generation after a cross between homozygous female &heterozygous male for a single locus.
Board 10th
Board Paper Practice
Why don’t purelines exhibit genetic variation for natural selection to act?
Purelines appear due to continuous inbreeding or self that makes the similarity in gene pairs. Thus, variations in pure lines are only environmental & Read More …
What are pleotropic genes?
Gene with multiple effect.
Mention the advantages of selecting Pea plant for the experiments by Mendel ?
The advantages of selecting Pea plant for the experiments by Mendel are: Pea plants have a short life cycle. They are easy to grow Read More …
Life processes. Q bank
Fill in the blanks: ————— is a fluid connective tissue. ———— is the filtration unit of kidney. An example of anaerobic respiration is ————- Read More …
Describe in detail the structure of DNA polynucleotide chain.
A nucleotide has three components – a nitrogenous base, a pentose sugar deoxyribose , and a phosphate group. There are two types of nitrogenous Read More …
Discuss the origin and evolution of Man.
Name 1st appeared characteristics Brain capacity place diet Dryopithecus & Ramapithecus 15 million years ago (MYA) Hairy, Ape like gait Ramapithecus more Read More …
Describe the role of Restriction enzymes in Biotechnology?
Restriction enzymes cut DNA molecules at a particular point by recognising a specific sequence . They are of two kinds – Exonucleases – remove Read More …
You must be logged in to post a comment.