Following statement regarding to acrosome reaction in sea urchin.

A. Activation of the acrosome reaction serves as a barrier to intraspecies fertilizations.

B. The acrosome reaction is initiated by sulfate-containing polysaccharides in the egg jelly that bind to specific receptors located directly above the acrosomal vesicle on the sperm cell membrane.

C. These polysaccharides are often highly species specific, but egg jelly factors from one species of sea urchin generally activate the acrosome reaction in closely related species.

D. The elevated Ca2+ level in a relatively basic cytoplasm triggers the fusion of the acrosomal membrane with the adjacent sperm cell membrane, releasing enzymes that can lyse a path through the egg jelly to the vitelline envelope.

Which of the following statements are correct?

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#Question id: 12965

#Unit 10. Ecological Principles

Phytoplankton is most frequently found in which of the following zones?

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#Question id: 11645

#Unit 7. System Physiology – Animal

Which of the following is inconsistent with the diagnosis of Graves’ disease?

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#Question id: 346

#Unit 1. Molecules and their Interaction Relevant to Biology

The partial negative charge in a molecule of water occurs because ________.

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#Question id: 2953

#Unit 2. Cellular Organization

If a cell in the G1 phase is fused with a cell in the S phase, then

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#Question id: 12713

#Unit 6. System Physiology – Plant

Following are certain statements related to plants water deficit condition;

a) Inhibits Leaf Abscission

b) Enhances Root Extension into Deeper, Moist Soil

c) Limits Photosynthesis within the Chloroplast

d) decreases Resistance to Liquid-Phase Water Flow

e) Increases Wax Deposition on the Leaf Surface

f) Alters Energy Dissipation from Leaves

Which of the following combination given statements is correct