Genetics: Notes on Cell Biology Assignment

Genetics: Notes on Cell Biology Assignment Words: 424

A male tiger contributes sperm to a female tiger’s egg to produce a zygote. The process that produces haploid gamete (sex cells) is called meiosis. This is because the life cycle found in animals, where the gametes are the only haploid cells. They combine to form a zygote, which divides by mitosis and grows to form a new individual. 3. The creation of offspring carrying genetic information by Just a single parent is called asexual reproduction meaning that reproduction can occur without a partner, ate or, with a living organism of the opposite gender. . Eukaryote spend most of the cell cycle in enterprise because cells enter mitosis (proposes, metastases, telephone ; anapest) when it is ready to divide the regular cell processes and DNA synthesis occurs during the majority of its life span in enterprise. 7. Prior to anapest each chromosome of a eukaryotic cell consist of a pair of identical structures called sister chromatic because the process that separates the placated genetic material carried in the nucleus of a parent cell into two identical daughter cells.

Before anapest begins, the replicated chromosomes, called sister chromatics, are aligned at along the equator of the cell on the equatorial plane. The sister chromatics are pairs of identical copies of DNA Joined at a point called the controvert. 8. A grammar is a diagram that can reveal alterations in chromosome size, shape and distribution of chromosome pairs and is useful for genetic counselors.

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Grammar also called diagram is a diagram or photograph of the chromosomes of a cell, arranged in homologous pairs and in a numbered sequence. 9. There are two major mechanisms for generating genetic diversity during meiosis. The first source of genetic variation is independent assortment which occurs in metastases I when the homologous chromosomes line up on the metastases plate. The location of the pairs is random; causing the maternal or paternal chromosome to go to each daughter cell randomly.

The second source of genetic variation during sissies is the exchange of genetic material between the maternal and paternal chromosomes, which is a process called crossing over or recombination. While the homologous chromosomes are paired together in proposes l, pieces of one chromosome may be exchanged with the identical portion of the other chromosome. 13. There are two types of sex chromosome in human gametes. In the case of male there is one X chromosome and one Y chromosome. In the case of female both of are two X chromosomes. 14. Genetics: Notes on Cell Biology By berserker

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