PATHOLOGY

Detailed explanation-1: -In vertebrates, sperm cells typically contribute which of the following a new organism? Explanation: In most vertebrates, sperm cells join with egg cells to form a zygote. Each cell produces a haploid complement of chromosomes in order to form the zygote.

Detailed explanation-2: -In most animals, including humans, the sperm contributes more than DNA to the zygote. It also donates a centriole-an organelle that is lacking in unfertilized human eggs. The sperm centriole enters the egg along with the sperm nucleus and tail and a centrosome forms around it.

Detailed explanation-3: -Whereas somatic cells undergo mitosis to proliferate, the germ cells undergo meiosis to produce haploid gametes (the sperm and the egg).

Detailed explanation-4: -In humans, only the egg and sperm cells are haploid.

Detailed explanation-5: -Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.