Inheritance Flashcards

1
Q

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

A

gene

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2
Q

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?

A

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

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3
Q

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

A
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4
Q

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

A
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5
Q

what is genotype?

A
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6
Q

what is recessive and dominant allele and what is phenotype?

A
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7
Q

diff b/w gene and allele?

A

GTN

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8
Q

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

A
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9
Q

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

A
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10
Q

state law of segregation?

A
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11
Q

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

A
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12
Q

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

A
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13
Q

what did Mendel conclude after monohybrid experiment?

A

4

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14
Q

state law of independent assortment.

A
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15
Q

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

A
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16
Q

define co-dominance. give blood group example?

17
Q

define incomplete dominance give Japanese flower example?

18
Q

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

19
Q

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

20
Q

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

21
Q

define variation. relate meiosis with variation.

22
Q

name sources of varitation

23
Q

types of variation with examples
diff b/w them

A

discontinuous and continuous

24
Q

organic evolution? what is adaptation?

25
Q

how variation can lead to evolution?

26
Q

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

27
Q

what is artificial selection? what is selective breeding?

28
Q

diff b/w natural selection and artificial selection.

A

5

when var ope slow respon

29
Q

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

30
Q

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