4. which statement is true of both mitosis and meiosis? both occur only in reproductive cells. dna replication occurs before the division of the nucleus. both are involved in asexual reproduction. the number of chromosomes is reduced by half. 5. the diagram below represents structures found in a human female. which process results in the formation of structure x? meiosis cloning recombination mitosis 6. meiosis is a type of cell division in which germ cells divide to produce haploid cells. where does meiosis occur? muscle cells bone cells ovary cells brain cells

DNA replication occurs before the division of the nucleus.meiosis is the process that results in the formation of structure X in the attached imageOvary cells.

QUESTION 1:

Before any cell undergoes division; whether meiosis or mitosis, its DNA must be replicated or duplicated in order to ensure that each daughter cell receive the correct number of chromosomes. This process of DNA replication involves the unwinding of the double-stranded DNA by HELICASE, and the synthesis of a new DNA strand.N.B: Meiosis occurs only in reproductive cells.

QUESTION 2:

The diagram attached displays a female reproductive system showing the fallopian tube where the female gamete (ovum/egg) passes. The egg which is labelled X is produced by the ovary during meiosis.Meiosis is the cell division that results in daughter cells (gametes) with each having their chromosome number reduced by half. i.e. a diploid (2n) female will produce haploid eggs (n)

QUESTION 3:

Meiosis occurs only in reproductive cells. It is a cell division that gives rise to gametes or sex cells used during reproduction. Ovary is the female reproductive organ that produces the female gamete (egg). Meiosis occurs in the diploid germ cells of the ovary and results to haploid cells called egg or ovum.

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1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.