Chromosomal Basis of Inheritance. — BIO BOTANY STD 12 — Question

Give the names of any four famous sacred grooves in Tamil Nadu.

Define the term mutation. Who coined the term?

Write in brief about Atomic Garden.

Name any four chemical mutagens.

Given below is a sequence of alphabets representing the genes of the chromosome. Observe it and answer the questions.
A-B-C-D-E-F-G-H-I-J-K.
(a) Write the sequence of genes after the chromosome undergoes terminal deletion of a single gene.
(b) What will be the gene sequence, if the genes E and F undergo tandem duplication?
(c) Consider the centromere is located between the genes F and G and write a gene sequence after paracentric inversion occurs in between the genes C, D, and E.

Name the category of organisms that occupy the first tropic level (T1) and fourth tropic level (T4) in an ecosystem.

Name the two types of tapetum. Mention any one function of tapetum.

In the picture given below, A and B represents the two different biomes. What does the letter C denotes? What will be its impact on the organisms in C Explain with example.

Write the health benefits of Kodo millet.

Name any four types of grafting.