Inheritance

Question 1

what is heredity?
genetics?
what is the basic unit of heredity?

Answer 1

gene

Question 2

where is hereditary material found in non dividing cell? what is it?
each _____ has a charcateristic number of chromosomes in its cells?
each human cell has how many chromosomes?
multiple alleles?

Answer 2

in the form of chromatin thin fibres DNA
species
46 in the form 23 homologous pairs

Question 3

describe composition of chromatin material? nucleosome?
linker DNA?
each chromatin fibre consist of?

Question 4

what is gene? what is locus? what are alleles?

Question 5

what is genotype?

Question 6

what is recessive and dominant allele and what is phenotype?

Question 7

diff b/w gene and allele?

Answer 7

GTN

Question 8

function of proteins? what is it?
what does the shape and behavior of proteins depend on? & what determines that? how is it done?

Question 9

what is transcription and translation? what is it used for?
what is central dogma?

Question 10

state law of segregation?

Question 11

explain monohybrid cross by using seed plant? phenotypic ratio and genotypic?

Question 12

draw monohybrid cross for height plants by Mendel. also explain and write phenotypic ratio and genotypic ratio.

Question 13

what did Mendel conclude after monohybrid experiment?

Answer 13

4

Question 14

state law of independent assortment.

Question 15

explain dihybrid ratio? how is it formed? draw it? and what does it prove? how?

Question 16

define co-dominance. give blood group example?

Question 17

define incomplete dominance give Japanese flower example?

Question 18

when is the ratio 1:2:1 formed? how is it formed?

Question 19

9:3:3:1 what is the name of this ratio? how is it formed?

Question 20

draw Punnett square for mother A hetero father AB
results of natural selection?

Question 21

define variation. relate meiosis with variation.

Question 22

name sources of varitation

Answer 22

5

fmigtn

Question 23

types of variation with examples
diff b/w them

Answer 23

discontinuous and continuous

Question 24

organic evolution? what is adaptation?

Question 25

how variation can lead to evolution?

Question 26

what is natural selection? what is natural selection based on? how does variation cause competition?

Answer 26

4

Question 27

what is artificial selection? what is selective breeding?

Question 28

diff b/w natural selection and artificial selection.

Answer 28

5 | when var ope slow respon

Question 29

what is hybridization? how are animals improved by it? how are plants improved by it?

Question 30

what is selection? how are animals improved by it? how are plants improved by it?