Drosophila melanogaster Study guides, Class notes & Summaries
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MMSC 490 Final (Already Graded A+)
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Which energy-producing process is thought to have come first during cellular evolution? correct answers Glycolysis 
 
The initial importance of a membrane enclosing self-replicating RNA molecules and associated proteins was that it correct answers maintained these molecules as a unit capable of reproduction and evolution. 
 
Mitochondria and chloroplasts resemble bacteria in that they correct answers have their own DNA, have their own ribosomes, reproduce by simple division into two. 
 
Which of...
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genetics replacement exam
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The DNA coding for a particular protein consists of 600 base pairs. How many amino acids are in the protein encoded by this gene? - Answer- 200 amino acids 
 
The process shown in the diagram is oogenesis in giraffes. Egg cells of giraffes have 15 chromosomes. How many chromosomes and chromatids would be found in the cell indicated with an arrow? - Answer- 15 chromosomes, 30 chromatids 
 
The DNA of a cell is replicated during what phase of the mitotic cell cycle? - Answer- S 
 
The genome of th...
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MMSC 490|255 Final Questions with 100% Correct Answers | Updated | Guaranteed A+
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Which energy-producing process is thought to have come first during cellular evolution? - ️️Glycolysis 
 
The initial importance of a membrane enclosing self-replicating RNA molecules and associated proteins was that it - ️️maintained these molecules as a unit capable of reproduction and evolution. 
 
Mitochondria and chloroplasts resemble bacteria in that they - ️️have their own DNA, have their own ribosomes, reproduce by simple division into two. 
 
Which of the following is a colo...
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Bio 171 Exam 2 Lectures 6-12
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Lecture 6: 
Vocab: 
● Autosome: 
○ Any chromosome not considered as a sex chromosome, or is not involved in sex 
determination. 
○ It occurs in pairs in somatic cells and singly in sex cells (gametes) 
● Bivalent: 
○ a pair of homologous chromosomes. 
● Drosophila melanogaster: 
○ a species of fruit Fly much used in genetics because of the large size of its 
chromosomes. 
● Epistasis (gene x gene interaction): 
○ refers to genetic interactions in which one gene modifies the eff...
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MMSC 490 Final Test Questions with Correct Answers
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MMSC 490 Final Test Questions with Correct Answers 
Which energy-producing process is thought to have come first during cellular evolution? - Answer-Glycolysis 
 
The initial importance of a membrane enclosing self-replicating RNA molecules and associated proteins was that it - Answer-maintained these molecules as a unit capable of reproduction and evolution. 
 
Mitochondria and chloroplasts resemble bacteria in that they - Answer-have their own DNA, have their own ribosomes, reproduce by simpl...
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MMSC 490 Exam Question and Answers All Correct
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MMSC 490 Exam Question and Answers All Correct 
 
Which energy producing process is thought to have come first during cellular evolution - Answer-glycolysis 
 
The initial importance of a membrane enclosing self-replicating RNA molecules and associated proteins was that it - Answer-maintained these molecules as a unit capable of reproduction and evolution 
 
Mitochondria and chloroplasts resemble bacteria in that they - Answer-have their own DNA 
have their own ribosomes 
reproduce by a simple ...
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MMSC490 Exam 1 Questions and Answers 2024
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MMSC490 Exam 1 Questions and Answers 2024 
The simplicity and clarity of Caenorhabditis elegans allowed researchers to - Answer- 
Identify the genes in differentiation of each cell type 
The diffraction limited resolving power of a standard light microscope is approximately - 
Answer-0.2 Om 
Chloroplasts are thought to have originated from endosymbiosis of ___ by large host 
cell. - Answer-Photosynthetic eubacteria such as cyanobacteria 
The eukaryotic nucleus contains ___ DNA molecule (s). - An...
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Bio 191 exam Questions and Correct Answers
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define one genetic map unit 
~ the physical distance between two genes that results in a 1% frequency of recombination 
In birds, sex is determined by ZW chromosome inheritance. Males are ZZ and 
females are ZW. Within pigeon populations there is a recessive, Z-linked allele that 
is lethal in embryos. What is the expected sex ratio in the offspring of a cross 
between a male that is heterozygous for the lethal allele and a wildtype female? 
~ 2:1 male to female 
A recessive allele on the X c...
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MMSC490 Exam 1 Questions and Answers | Verified & Updated
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MMSC490 Exam 1 Questions and Answers | 
Verified & Updated 
The feature that most clearly distinguishes eukaryotes from prokaryotes is the presence of..... in 
eukaryotic cells - Answer ️️ -a nucleus 
Cytoplasmic organelles are - Answer ️️ -absent in prokaryotic cells and present in eukaryotic 
cells 
The eukaryotic nucleus contains.... DNA molecules - Answer ️️ -multiple linear 
Stanley miller applied electric sparks to a reducing atmosphere of methane, ammonia, water, 
hydrogen, an...
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BIO 152 lab Exam 2 with Questions and Answers
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BIO 152 lab Exam 2 with Questions and Answers 
 
what is the scientific name for fruit flies? ANSWER Drosophila melanogaster 
 
why are fruit flies the most widely used organism for genetic studies? ANSWER they're easy to culture and have a quick regeneration time (12-14 days) 
 
what is the haploid (n) chromosome number in fruit flies? ANSWER 4 
 
What is chromosome 1 in fruit flies? ANSWER X, sex-chromosomes 
 
what chromosomes are the same in fruit flies for both sexes? ANSWER 2, 3, and 4 
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