NAME ____________________________DATE __________PER _____ REVIEW PACKET: CHAPTER 9 TEST CELL DIVISION – QUESTIONS ANSWERS 1. Packages of tightly coiled DNA CHROMOSOMES (which can only be seen during cell division) are called this A Centromere – 2. What are structures A and B in B Sister Chromatids – the diagram above? 3. Diploid (2n) a cell has what? Two sets of chromosomes 4. Give an example of a diploid cell Skin cell in your body. 4 a. How many chromosomes are 46 there in a normal human diploid body cell? 5. Haploid means a cell has what? One set of chromosomes 6. Give an example of a haploid cell Male = sperm in your body. Female = egg 6a. How many chromosomes are 23 there in a normal human haploid gamete? A karyotype shows picture of all – 7. What is the picture above called of one person’s chromosomes and what does it show you? 8. The first 22 pairs of chromosomes Autosomes are called what? Do they have No anything to do with the gender of the person? 9. The 23rd pair of chromosomes in Sex Chromosomes the picture in #7 are called what? Do Yes they determine the gender of – they have anything to do with the the person gender of the person? 10. Is the person in #7 a male or Male b/c he has XY as his 23rd pair female? of chromosomes
NAME ____________________________DATE __________PER _____ REVIEW PACKET: CHAPTER 9 TEST – CELL DIVISION QUESTIONS ANSWERS 1. Packages of tightly coiled DNA (which can only be seen during cell division) are called this CHROMOSOMES 2. What are structures A and B in the diagram above? A – Centromere B – Sister Chromatids 3. Diploid (2n) a cell has what? Two sets of chromosomes 4. Give an example of a diploid cell in your body. Skin cell 4 a. How many chromosomes are there in a normal human diploid body cell? 46 5. Haploid means a cell has what? One set of chromosomes 6. Give an example of a haploid cell in your body. Male = sperm Female = egg 6a. How many chromosomes are there in a normal human haploid gamete? 23 7. What is the picture above called and what does it show you? A karyotype – shows picture of all of one person’s chromosomes 8. The first 22 pairs of chromosomes are called what? Do they have anything to do with the gender of the person? Autosomes No 9. The 23rd pair of chromosomes in the picture in #7 are called what? Do they have anything to do with the gender of the person? Sex Chromosomes Yes – they determine the gender of the person 10. Is the person in #7 a male or female? Male b/c he has XY as his 23rd pair of chromosomes
Chapter%209%20Review%20-%20ASNWERS.docx