Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Hosted by Mr. Brett Genetics Reproduction Cells Mitosis & Meiosis 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 500 500 500 500 Chromosomes are made of strands of DNA. What are chromosomes made of? Row 1, Col 1 A gamete is a sex cell. Examples: egg and sperm. What is a gamete? (Give 2 examples for a bonus 50 each.) 1,2 Osmosis. What is the name for the process where matter passes in and out of a cell? 1,3 Haploid cells. They are usually reproductive cells. What is the name of the type of cell produced by meiosis. (Bonus 100: What usually is their purpose?) 1,4 Positive mutations help the individual survive and reproduce. Negative mutations hinder the individual. Describe the difference between positive and negative mutations. 2,1 Sponges, hydras and starfish can reproduce asexually. Name an animal that reproduces asexually. (50 bonus for each extra animal.) 2,2 Chromosomes. What is contained in the nucleus? 2,3 Meiosis (2 divisions happen to result in 4 cells.) Which form of cell division is represented by this image? How do you know? (Bonus 100) 2,4 Gender, Eye colour, hair colour, height, skin colour, facial structure Name 3 things that your genes control. (100 each for a max of 500) 3,1 External fertilization. What kind of reproduction is being shown by these pictures? 3,2 Organelles are parts of a cell that perform a specific function. Examples would be the nucleus, cell wall, cytoplast, cell membrane, vacuoles and chloroplast. What is an organelle? Give 2 examples of organelles that would be found in an animal cell. 3,3 To grow tissue and replace dead cells. What is the purpose of mitosis? 3,4 A gene is a section of DNA which controls a characteristic. What is a gene? 4,1 Algae, moss, ferns, puffballs, mushrooms. Name 4 organisms that reproduce by spores. (100 each) 4,2 A chloroplast is the part of a cell that performs photosynthesis. Only plant cells have chloroplasts. What is a chloroplast? (Bonus 100: What kind of cell has one?) 4,3 32 (1 x 2 x 2 x 2 x 4 = 32.) Suppose you start with one cell. If mitosis happens 3 times and then meiosis happens once, how many cells you have at the end? 4,4 If both parents have a brown eye gene and a blue eye gene, then they will both have brown eyes since the blue eye gene is recessive. If they both pass on the blue eye gen to a child, the child will have blue eyes. Describe the process by which two parents with brown eyes can have a child with blue eyes. 5,1 They are methods of dispersal for pollen, seeds and spores. What do the following things have in common? Wind, poop, insects and hummingbirds. 5,2 It is an animal cell because it has no chloroplast or cell wall. It is also round. Point to the following in this diagram of a cell: 1. Nucleus 2. Cell membrane 3. Cytoplasm What kind of cell is this and how do you know? 5,3 Haploid cells have only half the number of chromosomes (23 instead of 46.) Their chromosomes are a mix of features from the original 46. Meiosis produces cells called haploid cells. Describe 2 key features of haploid cells. 5,4