Sperm release <u>hyaluronidase</u> to break down the bonds between adjacent follicle cells surrounding the oocyte.
- In mammalian fertilization, the sperm cell's acrosome releases hyaluronidase after reaching the oocyte, breaking down hyaluronan in the corona radiata to enable conception.
- Sperm hyaluronidase has been linked to sperm penetration of the cumulus oophorus' extracellular matrix and may be extremely important for gamete contact and mammalian reproduction.
- The hyaluronidase enzymes on the surface of the sperm help it break through this covering when a capacitated sperm reaches the ovum.
- When this happens, the sperm might connect to the zona pellucida. Hyaluronidase breaks the egg's vitelline membrane as part of its function.
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Answer:
A) %
B) %
Explanation:
A) Given
Frequency of individuals in the population having recessive phenotypes %
Frequency of individuals in the population having recessive phenotypes is represented by
Thus frequency of recessive genes is equal to
frequency of dominant genes is equal to
Now,
% of genes exist in the heterozygous condition
B.
Frequency of individuals in the population having recessive phenotypes %
Frequency of individuals in the population having recessive phenotypes is represented by
Thus frequency of recessive genes is equal to
frequency of dominant genes is equal to
Now,
% of genes exist in the heterozygous condition
Answer:
b transfer of heat by the actual movement of warmed matter is the correct answer,
Explanation:
Convection: It is a type of heat transfer by the movement of a warm matter.
Convention only occurs in gases and liquids because it includes liquids and gases that are moving physically.
natural convection and forced convection are types of convection,
Examples of convection
Answer:
Parasitism
Explanation:
One organism benefits, and one is harmed.