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TLS Online TPP Program

#Question id: 5598

The vitelline envelope of the sea urchin egg

#XL - T Zoology

  1. is outside of the fertilization membrane

  2. releases calcium, which initiates the cortical reaction

  3. has receptor molecules that are specific for binding acrosomal proteins

  4. is first visible only when organogenesis is nearly completed

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TLS Online TPP Program

#Question id: 19758

#XL - P Chemistry

Which of the following pair of species is isoelectronic and same structure ?
TLS Online TPP Program

#Question id: 19759

#XL - P Chemistry

Which of the following sentence is incorrect for covalent bond ?
TLS Online TPP Program

#Question id: 19760

#XL - P Chemistry

Which of the following compound possesses covalent bond ?
TLS Online TPP Program

#Question id: 19761

#XL - P Chemistry

Which of the following molecule possesses polar and nonpolar covalent bond ?
TLS Online TPP Program

#Question id: 19762

#XL - P Chemistry

Which of the following compound does not possesses coordinate covalent bond ?
TLS Online TPP Program

#Question id: 19763

#XL - P Chemistry

Which of the following characteristic is not for covalent compound ?