What two alleles do males have for gender?

a. x chromosomes
b. y chromosomes
c. x and y chromosomes
d. sperm cells do not contain sex chromosomes

covalent bonding is a form of chemical bonding between two non metallic atoms which is characterized by the sharing of pairs of electrons between atoms and other covalent bonds.

option a and d is the correct answer

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population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .