Answer before jan 1, !
which of the following statements correctly describes meiosis?

a. the cells produced at the end of meiosis are genetically identical to the parent cell.

b. meiosis does not occur in reproductive cells.

c. the cells produced at the end of meiosis contain half the number of chromosomes as the parent cell.

d. cells divide only once during meiosis.

At the end of meiosis, produced cells contain half the number of chromosomes as the parent cell. Option C is correct.

Meiosis:

It is division in which cell divide into 4 haploid daughter cells.

Therefore, at the end of meiosis, produced cells contain half the number of chromosomes as the parent cell.

To know more about Meiosis,

link

option C - The cells produced at the end of meiosis contain half the number of chromosomes as the parent cell

Explanation:

Meiosis is also known as REDUCTIVE DIVISION, simply because a parent cell with diploid number of chromosome (46) is divided into four daughter cells with haploid number of chromosome (23)

Thus, ONLY option C correctly defines meiosis

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.