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Standard XII
Biology
Breasts Structure and Function
Eggs of place...
Question
Eggs of placental mammals are
A
Homolecithal
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B
Alecithal
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C
Microlecithal
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D
Mesolecithal
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Solution
The correct option is
B
Alecithal
Mammalian eggs contain very so less amount of yolk which called as Alecithal.
So the correct option is 'Alecithal.
'
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Similar questions
Q.
What kind of eggs are found in placental mammals?
Q.
The egg of placental mammals are
Q.
Assertion :Holoblastic cleavage with almost equal sized blastomeres in characteristic of placental mammal. Reason: Eggs of most mammals including humans are centrolethial.
Q.
Assertion :
Holoblastic cleavage, with almost equal sized blastomeres, is a characteristic of placental mammals.
Reason: Eggs of most mammals, including humans are of centrolecithal type
Q.
Distinguish between the following:
(i) Vertebrates and Invertebrates
(ii) Marsupials and Egg-laying mammals
(iii) Marsupials and Placental mammals.
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