Name:_____________________________________________________ Date:_________________________________ Period:_________ CELLULAR DIVISION Instructions: Place the correct word to complete the sentence. Use the word bank below. MITOSIS The cellular division happens when ___________________ _____________________ are created from the the division of a parent cell. The new cells are called diploid and in humans, these cells have a chromosome number of _________. CHROMOSOMES A structure that carries the coiled genetic information or ____________ of an organism. The chromosome generally has a shape of an “X”. The center of a chromosome is called a _________________________. It holds two _________________ ______________________ together. In humans, one of the sister chromatids comes from the ___________________ and the other comes from the ____________________. The tip or ends of the chromatids is called the ____________________________. MEIOSIS This particular cellular division involves ________________ ____________________. There are two stages of this cellular division which are ________________ and ______________. The sex cells in human beings are also called __________________. The sex cells in humans are __________________ for men and _________________ or _______________for women. During meiosis in humans, one parent cell divides and the result is _____________ daughter cells all having chromosome number of ________, which is ½ the number of chromosomes for human beings. WORD BANK Sex Cells Telomere 46 Sperm PMATII Father DNA PMAT I 4 Mother Somatic Cells Centromere 23 Gametes Sister chromatids Egg or Ovum CHROMOSOME LABELING BONUS REVIEW ABOUT CELLS*** 1). The brains of the cell, which controls the cells function and activity and which also carries the genetic information?___________________________ 2). The jelly-like substance inside the cell?_______________________ 3). This organelle transports proteins?______________________ 4). This organelle packages proteins?_______________________ 5). This organelle makes proteins?__________________________ 6). These organelles are not in animal cells but are in plant cells?_________________________ and _____________________. 7). This organelle holds water in the cell and other nutrients? ___________________________ 8). This organelle is the site for photosynthesis?___________________________ 9). This organelle is the site for cellular respiration and provides energy for the cell?________________________ 10). This is the outer most surface of an animal cell and allows somethings to come in and somethings to stay out of the cell?___________________ _____________________