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Which of these differences between male and female cockroaches (Periplaneta americana) is correct?

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Important Questions on Heredity and Variation

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Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
In which organism, female is XO and male is XX?
EASY
Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
Which of the following organisms produce sperm without involving meiosis?
HARD
Biology>Genetics and Evolution>Heredity and Variation>Sex Determination

Explain the sex determination process in humans with the help of ray diagram.

HARD
Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
Explain the Genetic balance theory of Drosophila with chart. 
EASY
Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
In a certain taxon of insects (Example: Cockroach), some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosomes bearing organisms are _________
HARD
Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
How does sex determination take place in humans?
HARD
Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
EASY
Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
Write a short note on the XX-XY system of sex determination.
EASY
Biology>Genetics and Evolution>Heredity and Variation>Sex Determination

In which of the organism, the following type of sex determination is possible

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Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
Study the following regarding genic balance theory of sex determination in Drosophila
I. Organism with AAA XXX is fertile triploid female
II. Organism with AAA XXY is fertile triploid male
III. Organism with AAA XX is an intersex
IV. Organism with AA XXY is metafemale
Which of the above are correct?
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Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
How is sex determined in honeybee? 
EASY
Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
From the chromosomal complements given below, identify the one which shows female heterogamety.
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Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
How many X chromosome (s) and how many autosomes (s) are present in human ovum?
HARD
Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
Discuss the role of chromosomes other than the sex-chromosome in the determination of sex.
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Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
In a classroom discussion, a student said that the sex of the baby is determined by the father. Analyse the statement and give reason for it.
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Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
How is sex determined in human beings?
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Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
Describe the chromosomal basis of sex determination in humans, honeybees and birds.
EASY
Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
Select the incorrect statement?
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Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
Haplo-diploid insects have diploid females from fertilized eggs but haploid males from unfertilized ones. Such a haploid male with red eyes is crossed with a white-eyed female. Assuming that the red-eye colour mutation is dominant over the white-eye colour, which one of the following statements is true?
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Biology>Genetics and Evolution>Heredity and Variation>Sex Determination
Select the incorrect statement.