What is probability of couple where male is karyotypically normal and the female in pericentric inversion in heterozygous condition produced child with disability if no crossing over takes placed within pericentric inversion. (Note: Duplication and deletion in gamete will results  in disability)

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#Question id: 5612

#SCPH01 Biochemistry

Outside the egg cell membrane is an extracellular matrix that forms a fibrous mat around the egg and is often involved in sperm-egg recognition. In invertebrates, this structure is usually called the:

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#Question id: 5613

#SCPH01 Biochemistry

Female mice with the CD9 gene knocked out are infertile because

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#Question id: 5614

#SCPH01 Biochemistry

One difference between the blastula and gastrula stages of development is that

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#Question id: 5615

#SCPH01 Biochemistry

The fast block to polyspermy is achieved by:

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#Question id: 5616

#SCPH01 Biochemistry

In the sperm the elevated Ca2+ level in a relatively basic cytoplasm triggers

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#Question id: 5617

#SCPH01 Biochemistry

In sea urchins and mammals, the rise in Ca2+ concentration responsible for the cortical granule reaction is due to