Question | Answer |
What are the functions of the nucleus? | They control cellular structure and cellular activites and produce Ribosomes |
What does a nucleus contain? | Nucleoil and genes |
How many chromosomes are there? | Body cells have 23 chromosomes |
What do chromosomes consists of? | The two chromosomes making up a chromosome pair are homologous chromosomes. One of each pair is from the father and one from the mother, each chromosome consists of many genes which are segments of DNA |
What are Alleles? | are alternative versions of a gene |
What are Homozygous alleles? | The have identical information for a trait |
What are heterozygous alleles? | They have different information for a trait |
What is cell division? | The process by which cells reproduce themselves |
Explain what somatic cell division does? | Somatic cell division is aimed to replicate cells to replace dead or damaged cells or add new cells during tissue growth and occurs through mitosis & cytokinesis |
Explain what Reproductive cell division does? | Reproductive cell division is aimed to produce the gamate cells (Sperm & oocyte) required for the next generation and occurs through meiosis |
What is mitosis role in the somatic cell division? | Parents cells produce two identical cells that have the same number of chromosomes 23 pairs as the parent cell, there are four stages that involve the division of the nucleus |
What is the role of cytokinesis in the somatic cell divison? | Is the division of the cytoplasm |