Biel-20 General Biology Lab 18W Final Exam the following stages of a cell underg
ID: 185851 • Letter: B
Question
Biel-20 General Biology Lab 18W Final Exam the following stages of a cell undergoing melosis i2 4 (10 points) A) What is the difference between sister chromatids and homel B) List 2 processes that increases the diversity of gametes by meiosis. (5 points) 6. What is the structure model of DNA? What is the function of DNA? (5 points) A) In which rwe locations are DNA typically found in eukaryotic animal cells? (3 points) B) What is the purpose of adding dish detergent in isolating D C) What is the purpose of adding meat tenderizer in isolation DNA from cells? (3 points) D) What is the chemical used to precipitate DNA? (3 points) E) What is the purpose of salt in order to make DNA precipitate in solution of polar molecules like water? (3 points) F) Is DNA found in all living or once living cells? (2points) Medgar Evers College of the City UniversExplanation / Answer
Answer 5:- A) The main difference between them is that in homologous chromosome are similar in nature which are known to present already in cell at the beginning of meiosis while on the other side sister chromatids are identical in nature which are known to present in the first stage of meiosis.
Answer 5 :- B) The two process which increase the diversity of gametes by meiosis are crossing over at the time of prophase 1, inner sister chromatids of homologous chromosome which are pair exchange some DNA. While other process such as independent assortment where in metaphase 1 homologous chromosome which are pair lined up in metaphase plate where they independently pair with each other.
Answer 6:- The structure of DNA is double helix in nature, DNA is known to Deoxyribonucleic acid. DNA is made up of a molecule which have phosphate backbone and sugar is deoxyribose where they have two strand which lined with each by having bonding of nucleotide between them such as adenine which pairs with thymine and cytosine with guanine. The function of DNA which carry genetic information and transmit the information from one generation to another.
Answer :- 6a) The two location where DNA is found in animal cell such as in organelles nucleus and mitochondria.
Answer 6:- D) Ethanol is a chemical which is used to precipitate DNA.
Answer 6:- F) It is found in all living cells.
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