GENETICS DINNER MENU

APPETIZER

• MMM..Mitosis: part of the cell cycle when two chromosomes in the nucleus are separated and each gets its own nucleus.
• MMM..Meiosis: part of cell division that reduces the number of chromosomes in half.

ENTRÉE

• In picture 1 is an egg before meiosis.
• In picture 2 the chromosome pairs line up in the center of the cell.
• In picture 3 the pairs separate and move to the opposite ends of the egg.
• In picture 4 2 cells formed and the cells have half the number of chromosomes and each is still made of 2 chromatids.
• In picture 5 meiosis starts over and the chromosome pairs move to the center.

SIDE DISH OPTION 1

• MMM..Meiosis: during meiosis, a cells chromosomes first, line up and next, the chromosome pairs separate then move to the ends of the cell. Next, two cells form and now each cell has only half the number of chromosomes and is still made up of two chromatids. Next, the single pairs of chromosomes move to the center of the cell. Lastly, the centromeres split and the chromosomes separate. They become single chromosomes and move to the opposite ends of the cell.

SIDE DISH OPTION 2

• In inheritance, genes, DNA, and chromosomes play important roles. First, chromosomes carry your genes. Genes are found in chromosomes and are linked together like beads on a string. Your body cells contain between 20,000 and 25,000 genes per cell. Genes are made up of DNA. The DNA acts as instructors to make protein molecules for the gene to produce for the chromosome.

SIDE DISH OPTION 3

• During asexual reproduction, one parent produces and exact replica of and organism identical to itself. Asexual reproduction can be an advantage when an animal such as worms, are living in harsh environments letting them reproduct quickly. During sexual reproduction, two sex cells join creating an organism. An advantage of this is producing new DNA. A disadvantage of asexual reproduction is the offspring has the exact same DNA as the parent, making it hard to survive in harsh changes in the environment. A disadvantage of sexual reproduction is the time it takes to find a mate and development takes a longer time.

DESSERT

• The offspring of sexual reproduction has a better chance of surviving because of the mix of DNA allows the organism to survive longer in harsh changes in the environment and its surroundings.