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Nick.Biology.Meiosis
| Question | Answer |
|---|---|
| What type of cell undergoes meiosis? | Gamete |
| What are homologous chromosomes? | paired chromosomes that code for the same trait. Determine how an individual looks. |
| Is a sperm cell haploid or diploid? | haploid |
| Is a liver cell haploid or diploid? | diploid |
| Is a egg cell haploid or diploid? | haploid |
| Is a stomach cell haploid or diploid? | diploid |
| If the diploid number in a liver cell is 52, how many chromosomes are there in the egg of this organism? | 26 |
| During meiosis, the chromosome number is: | reduced |
| Cells starting mitosis & meiosis begin with a (haploid or diploid) set of chromosomes. | diploid |
| How many times do cells divide during meiosis? | twice |
| What are the stages of Meiosis I called? | Prophase I, Metaphase I, Anaphase I, Telophase I |
| What are the stages of Meiosis II called | Prophase II, Metaphase II, Anaphase II, Telophase II |
| Draw a tetrad | |
| Which of the following best describe the term “crossing over”? | a) An exchange of information between two homologous chromosomes b) A molecular interaction between two sister chromatids c) A molecular interaction between two non-sister chromatids d) A separation of two sister chromatids |
| Crossing-over can be found in the stage or stages of a) Prophase I b) Prophase II c) Anaphase I d) Anaphase II | a) Prophase I |
| Is DNA copied before Meiosis II? | No |
| How many cells form at the end of Meiosis II and how many chromosomes do they contain compared to the parent cell? | Four cells with N chromosomes |
| A sperm cell is a (gamete, zygote), and is (haploid, diploid) | gamete / haploid |
| When a sperm cell and an ovum/egg merge, they undergo the process of fertilization, and give rise to a (gamete, zygote), which is (haploid, diploid). | zygote / diploid |
| What is the ultimate goal/purpose of mitosis? What term do we use to describe the new cells compared to the parent cell? | Goal: Growth; daughter cells. Term: Daughter cells |
| What is the ultimate goal/purpose of meiosis? What term do we use to describe the new cells compared to the parent cell? | Goal: To produce gametes Term: Sperms or eggs |
| Describe cancer. | Cells grow uncontrollably |
| What is the difference between chromosomes, chromatids, and homologous chromosomes? | 1. Chromatids form chromosomes 2. Chromosomes are composed of or carry DNA. 3. paired chromosomes that code for the same trait |
| How are DNA and chromosomes related? | DNA is the genetic code that runs along a chromosome |
| What is the difference between a haploid, diploid, and zygote? | 1. Haploid - One set of chromosomes; gametes 2. Diploid - two sets (pair) of chromosomes; somatic cells 3. Zygote - 2 haploid gametes fuse during fertilization to form a diploid cell (zygote) |
| How does Meiosis differ from Mitosis? Be specific! | A) meiosis produces haploid gametes, where as mitosis produces somatic cells B) meiosis involves 2 divisions, mitosis involves only 1 division; C) mitosis produces genetically identical daughter cells, meiosis produces genetically unique daughter ce |
| What does Meiosis create? Haploids or Diploid? Somatic cells or gametes? | haploid gametes |
| What is a gamete? How do we represent the chromosome number: 2n or n? | Gamete is a haploid (n) sex cells (sperm in males, egg is females) |
| What is crossing over? When does it happen? | Exchange or alles between homologous chromosomes during prophase 1 of meiosis |
Created by:
Meachum