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Cell Division 808
terms and defininations
| Question | Answer |
|---|---|
| Mitosis- | is the process in which the nucleus divides to from two identicalnucli. |
| Chromosomes- | is a structure in the nucleus that contains hereditary material.during interphase ,each,each chromosomes duplicate. |
| asexual reproduction- | a new orginism (sometimes more than one) is produced from one organism. |
| sexual reproduction- | when to sex cells, sometimes called a egg and a sperm, come together. They are formed from reproductive organs. |
| sperm- | are formed in the male reproductive organs. |
| eggs- | are formed in the female reproductive oragans. |
| Fertilization- | the joinind of a egg and sperm. |
| Zygote- | is the cell that is formed from fertialization |
| diploid- | when cells have similar chromosomes. |
| haploid- | sex cells that do not have pairs of chromosomes |
| Meiosis- | produces haploid sex cells |
| DNA- | deoxyribonucleic acid, the genitic material of all organisms, made up of two twisted strands of sugarphosphate molecules and nitrogen bases |
| RNA- | riboncleic acid, type of nucleric acid that carries codes for making protiens from the nucleus to the ribosomes |
| Gene- | section of dna on a chromosome that comtains instructions for making specific protiens |
| Mutation- | any pemanent change in a gene or chromosomesof a cell. |