a) Why can someone can directly observe polytene chromosomes under a conventional light microscope? Explain. b)...
a) Why can someone can directly observe polytene chromosomes under a conventional light microscope? Explain.
b) What is the ploidy of polytene chromosomes? Why? Please explain :(
Homework Answers
A. Polytene chromosomes are clearly observed under light microscopy because the size of these cromosome are extremely large so it can be easily seen in 100x magnification in light microscopy
B. The ploidy of polytene chromosomes is polyploid because many divisions occurred so the size of chromosomes became large
Add Answer to:
a) Why can someone can directly observe polytene chromosomes
under a conventional light microscope? Explain.
b)...
Question 19 (1 point) Process by which Chromosomes become visible under a light microscope synapsis crossing...
Question 19 (1 point) Process by which Chromosomes become visible under a light microscope synapsis crossing over condensation replication Question 20 (1 point) During the G2/ M stage of the cell cycle, the cell has an opportunity to check that replication of DNA occured without errors the nutritional and health state of the cell is ok growth factors are present none of the above
2. Essay: Roughly how big is the smallest object that can be seen with a conventional...
2. Essay: Roughly how big is the smallest object that can be seen with a conventional light microscope? Why? Give an example of a technique that can be used to see smaller objects, and explain how it works.
why can you not see the double helix when observing the DNA under a microscope?
why can you not see the double helix when observing the DNA under a microscope?
the answer is A. can someone explain why it is 0?? 15) Dire wolves have 5...
the answer is A. can someone explain why it is 0??
15) Dire wolves have 5 pairs of chromosomes in their cells. How many chromatids would you expect to find in each cell after Anaphase li has completely finished? A) O B) 5 10 D) 20 25
Laboratory 34 Report Sheet - Lab 34 B. Extraction of DNA B.2 Appearance under a microscope DNA Source B.1 Texture and Appearance Questions and Problems Q.1 Why is it necessary to heat the DNA so...
Laboratory 34 Report Sheet - Lab 34 B. Extraction of DNA B.2 Appearance under a microscope DNA Source B.1 Texture and Appearance Questions and Problems Q.1 Why is it necessary to heat the DNA source and buffer mixture? Laboratory 34 Transfer the DNA from the glass rod to a paper towel and let et 17 dry. 18 Observe the DNA obtained by other student teams with ditferent DNA sources, or repeat the procedure above with another DNA souroe. Check when...
2. A microscope has a 1.1 cm diameter objective lens with a focal length of 2.3...
2. A microscope has a 1.1 cm diameter objective lens with a
focal length of 2.3 mm. The microscope is using light with a
wavelength of 550 nm.
Please help me break down and work through this practice
question so that I can better under the steps and work it out on my
own.
2. A microscope has a 1.1 cm diameter objective lens with a focal length of 2.3 mm. The microscope is using light with a wavelength of...
Hello! Can someone help me answer this please? 1. Answer the following questions about chromosomal and...
Hello! Can someone help me answer this please?
1. Answer the following questions about chromosomal and extra-chromosomal DNA: A. A previously undiscovered single-cell organism was found living at a great depth on the ocean floor. Its nucleus contained only a single linear chromosome with 7* 106 nucleotide pairs of DNA coalesced with three types of histone-like proteins. A short micrococcal nuclease digestion yielded DNA fractions of 700, 1400, and 2100 bp. Predict what these fractions represent. What conclusions can be...
Can someone please explain WHY with the answer, also which would be the SHOREST AND WHY....
Can someone please explain WHY with the answer, also which
would be the SHOREST AND WHY.
1. Which of the following bonds is the longest bond? a. C-C b. C-N c. C-S d. C-H e. C-Cl
Can someone please explain why the ordering is A>D>B>E>C I know why c is first because...
Can someone please explain why the ordering is
A>D>B>E>C I know why c is first because it's primary
and why A is last because it's tertiary the most stable but the
middle is hard for me to understand.
Reaction coordinate 2. Rank the following carbocations in order of decreasing stability
Can someone explain how to do this and why?
Can
someone explain how to do this and why?
Question 19 (1 point) Process by which Chromosomes become visible under a light microscope synapsis crossing over condensation replication Question 20 (1 point) During the G2/ M stage of the cell cycle, the cell has an opportunity to check that replication of DNA occured without errors the nutritional and health state of the cell is ok growth factors are present none of the above
2. Essay: Roughly how big is the smallest object that can be seen with a conventional light microscope? Why? Give an example of a technique that can be used to see smaller objects, and explain how it works.
the answer is A. can someone explain why it is 0??
15) Dire wolves have 5 pairs of chromosomes in their cells. How many chromatids would you expect to find in each cell after Anaphase li has completely finished? A) O B) 5 10 D) 20 25
Laboratory 34 Report Sheet - Lab 34 B. Extraction of DNA B.2 Appearance under a microscope DNA Source B.1 Texture and Appearance Questions and Problems Q.1 Why is it necessary to heat the DNA source and buffer mixture? Laboratory 34 Transfer the DNA from the glass rod to a paper towel and let et 17 dry. 18 Observe the DNA obtained by other student teams with ditferent DNA sources, or repeat the procedure above with another DNA souroe. Check when...
2. A microscope has a 1.1 cm diameter objective lens with a
focal length of 2.3 mm. The microscope is using light with a
wavelength of 550 nm.
Please help me break down and work through this practice
question so that I can better under the steps and work it out on my
own.
2. A microscope has a 1.1 cm diameter objective lens with a focal length of 2.3 mm. The microscope is using light with a wavelength of...
Hello! Can someone help me answer this please?
1. Answer the following questions about chromosomal and extra-chromosomal DNA: A. A previously undiscovered single-cell organism was found living at a great depth on the ocean floor. Its nucleus contained only a single linear chromosome with 7* 106 nucleotide pairs of DNA coalesced with three types of histone-like proteins. A short micrococcal nuclease digestion yielded DNA fractions of 700, 1400, and 2100 bp. Predict what these fractions represent. What conclusions can be...
Can someone please explain WHY with the answer, also which
would be the SHOREST AND WHY.
1. Which of the following bonds is the longest bond? a. C-C b. C-N c. C-S d. C-H e. C-Cl
Can someone please explain why the ordering is
A>D>B>E>C I know why c is first because it's primary
and why A is last because it's tertiary the most stable but the
middle is hard for me to understand.
Reaction coordinate 2. Rank the following carbocations in order of decreasing stability
Can
someone explain how to do this and why?
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