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IMPORTANT
Earn 100

Match the following:
Karyotype of Drosophila
Sex
A)
Metafemale
B)
Female
C)
Intersex
D)
Metamale
Male
The correct match is
(a)
(b)
(c)
(d)

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Important Questions on Principles of Inheritance and Variation
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IMPORTANT
In which of the organism, the following type of sex determination is possible

MEDIUM
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IMPORTANT
Study the following regarding genic balance theory of sex determination in Drosophila
I. Organism with is fertile triploid female
II. Organism with is fertile triploid male
III. Organism with is an intersex
IV. Organism with is metafemale
Which of the above are correct?

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Assertion (A): In human beings, the sex of the offspring depends on the type of sperm that fertilizes the ovum
Reason (R): Human males are heterogametic
The correct option among the following is

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In a dihybrid cross between genes yellow, white and miniature characters, the parental between yellow and white and recombination % is and respectively, and the cross between white and miniature characters, the recombination is and parental is . Identify the genetic map of these.

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IMPORTANT
Statement I : All the three types of allosomal genes - linked, linked and linked are present only in male human being.
Statement II : Only linked and not linked genes are present in female human being.
The correct option among the following is

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IMPORTANT
Colour blindness in human beings is

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IMPORTANT
Statement (S): The heterozygous individuals for sickle-cell anaemia express disease phenotype and also carriers of the disease.
Reason (R): genotype individuals are resistant to severe effects of malaria.
The correct answer is

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IMPORTANT
A change of single base pair in the gene for beta globin chain (in human haemoglobin) that results in the change of amino acid residue glutamine to valine which is due to
