(D) The egg-laying mammals,also known as $Prototherians$ (e.g.,$Platypus$ and $Echidna$),possess $macrolecithal$ or $polylecithal$ eggs. In these eggs

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(D) The egg-laying mammals,also known as $Prototherians$ (e.g.,$Platypus$ and $Echidna$),possess $macrolecithal$ or $polylecithal$ eggs. In these eggs,the amount of yolk is significantly greater than the amount of cytoplasm,which is a characteristic feature of birds and reptiles as well. Placental mammals and marsupials produce $microlecithal$ or $alecithal$ eggs,where the yolk content is minimal.

Class 12 Biology Principles of Inheritance and Variation Mix Examples- Principles of Inheritance and Variation

Medium

Which mammals have more yolk than cytoplasm in their eggs?

A
Placental mammals
B
Aquatic mammals
C
Marsupials
D
Egg-laying mammals

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Class 12

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Chapter

Principles of Inheritance and Variation

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Mix Examples- Principles of Inheritance and Variation

In $Drosophila$,during organ differentiation,if one organ is transformed into another (e.g.,legs instead of wings),what is the gene responsible for such transformation called?

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In what context does an epistatic gene differ from a dominant gene?

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Match the following columns correctly:
Column-$I$ Column-$II$
$(a)$ $1 : 2 : 1$ $(i)$ Test cross
$(b)$ $3 : 1$ $(ii)$ Law of Dominance
$(c)$ $9 : 3 : 3 : 1$ $(iii)$ Incomplete Dominance
$(d)$ $1 : 1 : 1 : 1$ $(iv)$ Law of Independent Assortment
$(v)$ Law of Segregation

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Identify the correct statement.

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$A$ hereditary disease,which is never passed on from father to son,is:

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Column-$I$	Column-$II$
$(a)$ $1 : 2 : 1$	$(i)$ Test cross
$(b)$ $3 : 1$	$(ii)$ Law of Dominance
$(c)$ $9 : 3 : 3 : 1$	$(iii)$ Incomplete Dominance
$(d)$ $1 : 1 : 1 : 1$	$(iv)$ Law of Independent Assortment
	$(v)$ Law of Segregation

Which mammals have more yolk than cytoplasm in their eggs?

Similar Questions

In $Drosophila$,during organ differentiation,if one organ is transformed into another (e.g.,legs instead of wings),what is the gene responsible for such transformation called?

In what context does an epistatic gene differ from a dominant gene?

Match the following columns correctly:Column-$I$Column-$II$$(a)$ $1 : 2 : 1$$(i)$ Test cross$(b)$ $3 : 1$$(ii)$ Law of Dominance$(c)$ $9 : 3 : 3 : 1$$(iii)$ Incomplete Dominance$(d)$ $1 : 1 : 1 : 1$$(iv)$ Law of Independent Assortment$(v)$ Law of Segregation

Identify the correct statement.

$A$ hereditary disease,which is never passed on from father to son,is:

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Online Exam Module

Match the following columns correctly:
Column-$I$ Column-$II$
$(a)$ $1 : 2 : 1$ $(i)$ Test cross
$(b)$ $3 : 1$ $(ii)$ Law of Dominance
$(c)$ $9 : 3 : 3 : 1$ $(iii)$ Incomplete Dominance
$(d)$ $1 : 1 : 1 : 1$ $(iv)$ Law of Independent Assortment
$(v)$ Law of Segregation