7 18. The diagram shows Crossing over 19 18. The diagram shows Crossing over 19. It occurs during Prophase I of meiosis 20. The result is a new combination of alleles/genes (Differing chromosomes)
8 MITOSIS MEIOSIS ASEXUAL SEXUAL (FIRST STAGE) 2 4 FORM OF REPRODUCTIONASEXUALSEXUAL (FIRST STAGE)NUMBER OF DAUGHTER CELLS24CHANGE IN CHROMOSOME NUMBERNO CHANGE (STAYS DIPLOID)HALVED OR CUT IN HALF (HAPLOID)NUMBER OF CELL DIVISIONS1DIFFERENCES IN ALLELES BETWEEN PARENT AND DAUGHTER CELLSDOESN’T CHANGEGENETICALLY DIFFERENT FROM PARENT
9 22.A diploid cell that enters mitosis with 16 chromosomes will divide to produce __2__ daughter cells. Each of these daughter cells will have __16__ chromosomes.*Remember, mitosis doesn’t change the daughter cells – they’re identical to parent
10 23.If the diploid number of chromosomes for an organism is 16, each daughter cell after mitosis will contain __16__ chromosomes.
11 24.A diploid cell that enters meiosis with 16 chromosomes will pass through __2__ cell divisions, producing __4__ daughter cells, each with __8__ chromosomes.Diploid cell haploid cellDouble - half
12 25. Gametes have a haploid number of chromosomes. Half as many as a normal body cellEx: Humans have 46 chromosomes, except in gametes (sperm/egg) which have 23 (haploid)
13 26. If an organism’s haploid number is 5, its diploid number is 10. If given the haploid, double itIf given the diploid, halve it
14 27.While a haploid number of chromosomes may be even or odd, a diploid number is always even.