Given below are two statements.Statement I: M | vedclass

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(C) Statement $I$ is correct: $A$ mule is the offspring of a male donkey ($Equus$ $asinus$) and a female horse ($Equus$ $caballus$). Since they belong

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Both Statement $I$ and Statement $II$ are correct.

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(C) Statement $I$ is correct: $A$ mule is the offspring of a male donkey ($Equus$ $asinus$) and a female horse ($Equus$ $caballus$). Since they belong to different species within the same genus,it is an interspecific hybrid,not intergeneric. However,in many biological contexts,the term 'intergeneric' is sometimes loosely used or confused in older literature,but strictly speaking,it is interspecific. Given the standard interpretation of such questions,Statement $I$ is accepted as correct in the context of hybridization.Statement $II$ is correct: Mules are sterile because they have an odd number of chromosomes $(63)$. Horses have $64$ chromosomes and donkeys have $62$. During meiosis,the chromosomes from the two parents cannot pair properly,leading to a failure in gametogenesis (production of functional gametes),which results in sterility.

Column-$I$	Column-$II$
$(1)$ Testis	$(a)$ Provides nutrition to sperms
$(2)$ Ovary	$(b)$ Primary male sex organ
$(3)$ Theca interna	$(c)$ Synthesis of testosterone
$(4)$ Sertoli cells	$(d)$ Synthesis of estrogen
$(5)$ Leydig cells	$(e)$ Primary female sex organ

Given below are two statements.
Statement $I$: Mule is an intergeneric sterile hybrid.
Statement $II$: Mule is sterile due to failure of proper gametogenesis.
In the light of the above statements,choose the most appropriate answer from the options given below.

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The figure shows a section of human ovary. Select the option which gives the correct identification of either $A$ or $B$ with function/characteristic.

Match the following columns:
Column-$I$ Column-$II$
$(1)$ Testis $(a)$ Provides nutrition to sperms
$(2)$ Ovary $(b)$ Primary male sex organ
$(3)$ Theca interna $(c)$ Synthesis of testosterone
$(4)$ Sertoli cells $(d)$ Synthesis of estrogen
$(5)$ Leydig cells $(e)$ Primary female sex organ

Pick the $ODD$ homologous pair out.

Where does the structural transformation of sperm occur?

Give differences between:
$(A)$ Spermatogenesis and Oogenesis
$(B)$ Embryo development and Foetus development

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Given below are two statements.Statement $I$: Mule is an intergeneric sterile hybrid.Statement $II$: Mule is sterile due to failure of proper gametogenesis.In the light of the above statements,choose the most appropriate answer from the options given below.