In this session, we will be showing you the answers for the topic Protein Synthesis and Meiosis.
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Table of Contents
Protein Synthesis Edpuzzle Answers
Following are the Edpuzle answers to the topic Protein Synthesis:
Q. A gene is a section of DNA that ______.
Ans: Has the code for a protein
Q. Proteins are made at which location?
Ans: ribosomes outside the nucleus
Q. The “message” in messenger RNA is ______.
Ans: The information for how to make a protein
Q. Where is DNA found in cells?
Ans: in the nucleus
Q. Can DNA leave the nucleus?
Ans: no
Q. Genes are copied onto a small molecule that can leave the nucleus. What is the name of this molecule?
Ans: mRNA
Q. What are the complementary DNA base pairs?
Ans: A-T and C-G
Q. RNA polymerase is _____
Ans: an enzyme
Q. What would be the complementary mRNA sequence for the following DNA sequence?
Ans: DNA sequence: ATG UAC
Q. Which of the following best describes transcription?
Ans: Copying a section of DNA to RNA
Q. Where does transcription occur?
Ans: nucleus
Q. What enzyme is involved in transcription?
Ans: RNA polymerase
Q. A codon is a group of three nucleotide bases (also called a triplet) that codes for a single _____.
Ans: amino acid
Q. When mRNA leaves the nucleus, it _____.
Ans: binds to a ribosome
Q. tRNA carries ___ to the ribosomes.
Ans: amino acids
Q. Amino acids are in the correct order at the ribosome because _____.
Ans: each tRNA has an anti-codon that is complementary (matches) to the mRNA codon
Q. What is the product of translation?
Ans: mRNA
Q. What is the specific site of translation?
Ans: ribosome
Q. What units make up a protein?
Ans: amino acids
Edpuzzle Meiosis Answers
Following are the Edpuzle answers to the topic Meiosis:
Q. How many cells are produced by meiosis?
Ans: 4
Q. What is happening during Prophase I?
Ans: Homologous chromosomes pair up and crossing over occurs (exchange of genetic material)
Q. What is recombination and why is it important?
Ans: Some of the genetic material is swapped between the two chromatids, now the chromosomes are a mixture of the DNA from the two parents. This is important as it leads to genetic diversity.
Q. What has formed at the end of meiosis I?
Ans: 2 daughter cells
Q. True or False – The DNA replicates again right before meiosis II.
Ans: False
Q. Describe the cells which are formed at the end of the process of meiosis
Ans: 4 cells, which are genetically different, and each hold half the amount of DNA of the original cell
Q. How many Chromosomes do humans have?
Ans: 46
Q. When a cell contains two sets of chromosomes, one from the mother and one from the father, it is called
Ans: diploid
Q. When a cell contains only one of each chromosome, there are no partners, this is called
Ans: haploid
Q. What is the haploid number for humans?
Ans: 23
Q. What type of cells does mitosis make?
Ans: body cells like skin and stomach cells
Q. In which phase do your cells replicate your chromosomes?
Ans: interphase
Q. When 46 chromosomes replicate, how many chromatids are there?
Ans: 92
Q. Mitosis produces _______ cells while meiosis produces _______ cells.
Ans: 2 diploid; 4 haploid
Q. What are homologous chromosomes?
Ans: Chromosomes that are similar in size to each other and have similar traits at the same location on each chromosome. One comes from mom, other from dad.
Q. During which phase of Meiosis does crossing-over occur?
Ans: prophase 1
Q. What does crossing over of homologous pairs or homologous chromosomes do to siblings with the same parents?
Ans: Causes genetic variation in which siblings look different from each other
Q. How are the chromosomes arranged DIFFERENTLY in Metaphase I (meiosis) compared to Metaphase during mitosis?
Ans: In Metaphase I, homologous chromosomes are paired up in the center of the cell
Q. After Meiosis I, the end result is
Ans: Two cells that each have half the number of chromosomes they started with
Q. Prophase II is not as eventful as Prophase I because
Ans: crossing over does not occur
Q. Look at the chart and the cells. You started with one cell with 46 chromosomes. What is the product of meiosis?
Ans: 4 cells with 23 chromosomes
Q. Which events during meiosis increase GENETIC VARIATION by ensuring that each egg and each sperm will be unique? Mark 2.
Ans: crossing over & independent assortment
Q. What is the term for incorrect separation of chromosomes?
Ans: nondisjunction
Q. When can you see chromosomes?
Ans: only when they are in their condensed form
Q. If you have a cell with 46 chromosomes and it replicates its chromosomes before cell division, how many chromosomes do you now have in the cell?
Ans: 46
Q. In anaphase sister chromatids get pulled apart. How many chromosomes are now present in the cell?
Ans: 92
Q. Before meiosis occurs, what must happen with the DNA?
Ans: DNA replication will occur
Q. How many cell divisions occur with Meiosis?
Ans: 2 (Meiosis I and Meiosis II)
Q. What happens to the chromatin in Prophase I?
Ans: Chromatin condenses into discrete chromosomes
Q. What will happen to the centrosomes in Prophase I?
Ans: The pair will go to the opposite poles of the cell
Q. what’s another word for a homologous chromosome?
Ans: homolog
Q. During Prophase I, what happens when crossing over occurs at the chiasmata between homologs or homologous chromosomes?
Ans: The crossing over leads to genetic variation due to exchanging genetic material between the homologous chromosomes
Q. What happens during Anaphase I?
Ans: The homologous chromosomes separate
Q. What happens during Telophase I?
Ans: The DNA decondense, the nuclear membrane reforms, and the cytoplasm divide. Homologous chromosomes separate from each other and go to opposite ends of the cell.
Q. During Metaphase II. what lines up at the equatorial plate?
Ans: Sister chromatids of a chromosome
Q. During Telophase II, what happens?
Ans: Nuclear membrane reforms result in decondensed chromosomes, and the cytoplasm divides.
Conclusion
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