Accelerate NEET 2020 : Principle of Inheritance -05

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Question 1

XO type of sex determination and XY type of sex determination are the examples of

• Amale heterogamety
• Bfemale heterogamety
• Cmale homogamety
• Dboth (b) and (c)

Question 2

Which of the following is incorrect regarding ZW-ZZ type of sex determination?

• AIt occurs in birds and some reptiles.
• BFemales are homogametic and males are heterogametic.
• C1:1 sex ratio is produced in the offsprings
• DAll of these

Question 3

In XO type of sex determination

• Afemales produce two different types of gametes
• Bmales produce two different types of gametes
• Cfemales produce gametes with Y chromosome
• Dmales produce gametes with Y chromosome

Question 4

Select the incorrect statement.

• AIn male grasshoppers 50% of sperms have no sex-chromosome
• BIn domesticated fowls, sex of progeny depends on the type of sperm rather than egg
• CHuman males have one of their sex chromosome much shorter than the other
• DMale fruit fly is heterogametic

Question 5

Refer to the given figure.

This type of sex determination is found in

• Agrasshoppers and cockroaches
• Bbirds and reptiles
• Cbutterflies and moths
• Dhoneybees, ants and wasps

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