Sex Determination in Basic Genetics

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Questions and Answers

Match the following terms with their description:

Primary sex characters = Distinct since birth in both male and females and involved in sexual reproduction Secondary sex characters = Express differently in both sexes and not involved in reproduction Chromosomes = Governs the expression/control of sex Genes = Involved in the expression/control of sex

Match the following with their role in sex determination:

Plants = Male and female floral parts determine the sex Animals = Primary and secondary sex characters are used to determine sex Chromosomes = Play a role in governing the expression/control of sex Environmental factors = Also play a role in the control of sex determination

Match the following with their contribution to sex determination:

Male = Development into a male individual Female = Development into a female individual Identification of Sex = Done with the help of sex-related morphological traits Unisexual animals = Chromosomes are of two types: autosomes and extit{SN. 1}

Match the following with their involvement in sex determination:

<p>Sex organs or gonads = Primary sex characters involved in sexual reproduction Voice, Muscles etc. = Secondary sex characters expressing differently in both sexes i. Autosomes = Type of chromosomes found in unisexual animals ii. SN. 1 = Another type of chromosomes found in unisexual animals</p> Signup and view all the answers

Match the following with their significance in sex determination:

<p>Sex determination = Process utilizing various genetic concepts to decide male or female development Expression of sex/Control of sex = Governed by chromosomes, genes, and environmental factors Morphological distinction = Possible only after flowering in plants Identification of Sex = Done with the help of sex-related morphological traits</p> Signup and view all the answers

Explain the process of sex determination and its relation to genetic concepts.

<p>Sex determination is the process of deciding whether an individual develops into a male or female. It utilizes various genetic concepts to identify the contrasting features of male and female individuals of the same species.</p> Signup and view all the answers

What are the primary and secondary sex characters in animals? Give examples of each.

<p>Primary sex characters are distinct since birth in both males and females and are involved in sexual reproduction, such as sex organs or gonads. Secondary sex characters express differently in both sexes and are not involved in reproduction, examples include voice and muscles.</p> Signup and view all the answers

How is the sex of an individual identified in plants? When is morphological distinction possible?

<p>In plants, the sex of an individual is determined by the male and female floral parts. Morphological distinction is possible only after flowering.</p> Signup and view all the answers

What governs the expression and control of sex in unisexual animals?

<p>The expression and control of sex in unisexual animals is governed by chromosomes, genes, and environmental factors.</p> Signup and view all the answers

What are the contrasting features of male and female individuals of the same species called?

<p>The contrasting features of male and female individuals of the same species are called sex.</p> Signup and view all the answers

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