Lesson 15.1 Crossword


2.tropic hormone produced by the anterior pituitary that signals the egg's release from the follicle, stimulates the production of progesterone and small amounts of estrogen in women, and stimulates the interstitial cells of the testes to produce testosterone in men
4.the formation of a single cell that contains the genetic material from two gametes, one from each parent
6.paired strands of a duplicated chromosome that become visible during cell division and that are joined by a centromere
9.rod-shaped structures in the nuclei of our body cells that contain individual DNA and genes
10.connections that form between homologous chromosomes during meiosis, resulting in the swapping of portions of chromosomes
11.mature haploid male or female cells that unite with cells of the opposite sex to form a zygote; eggs and sperm
12.a cell having two sets of chromosomes: one set from the mother and one set from the father


1.the point or region on a chromosome that divides the chromosome into two arms and functions as the point of attachment for the sister chromatids; provides movement during cell division
3.a type of cell division that produces eggs (in females) or sperm (in males), daughter cells with half the chromosome number of the parent cell
5.the first menstrual bleeding
7.having a single set of unpaired chromosomes
8.a diploid cell produced by the fusion of a sperm with an egg; a fertilized egg

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