X-ray diffraction pattern data.
Watson and crick first described the structure of DNA double helix in 1953 using X-ray diffraction data of DNA fibers observed by R.Franklin and M.wilson .
What kind of data on DNA structure was gathered by Rosalind Franklin and Maurice Wilkins? a....
What information about the structure of DNA was obtained from Rosalind Franklin and Maurice Wilkins X-ray crystallographic data?
Watson and Crick A. Determined the mode of DNA replication Rosalind Franklin B. Discovered the four DNA nucleotides: A, T, C, G Meselson and Stahl C. Determined the ratios of nucleotides in DNA Edwin Chargaff D.Used X-ray crystallography to determine the 3- Dimensional structure of DNA E. Proposed a double helix model of DNA F. Proposed a triple helical model of DNA
Question 3 0. The X-ray diffraction work of Franklin and Wilkins showed that DNA contains four types of bases. O is composed of nucleotides. O is a double helix, contains hydrogen bonds between bases.
Who were the guys who figured out the structure of DNA? What did Rosalind Franklin contribute to the discovery? How do the bases pair in DNA? How did Franklin’s X-ray image and Chargaff’s rule help? What function do the telomeres seem to serve? For what do we use genetic engineering?
Chargaff discovered that the A-T bond has the same width as the G-C bond. What implication does this have for the structure of the DNA molecule? It means that the molecule will vary in width as you move down its length, depending on the number of A-T and G-C nucleotides. It means that the molecule will be very hydrophilic, because nucleotides are hydrophilic. It means that DNA was the first life form on Earth. It means that the molecule will...
Rosalind Franklin spent countless hours in the lab solving the structure of DNA. We know that X-rays cause DNA to break in half. A) Which of the following chromosomal rearrangement likely occurred in her cells: deletion, duplication, inversion, or translocation? B) Explain how this could lead to a position effect on gene expression.
22) Rosalind Franklin used X-ray crystallography to show the structure of DNIA and published her oun poper describing this structure the same year as ether Scientists What is the contreveray discovery? Do you think she should have received a Nobel erize for her contribution to Bielegy? Why or why nat (2 morks) around Rosalind Franklin Write the nome in each bex in the diogram of DNJA Replicatien shewn below (3 marks) 3-old stranc Strand The strand 24) a) Wirite the...
2 3 4 5 6 Chapter 10 1. The discovery that ON scientists. Briefly describe the con --Hershey and Chase showed Rosalind Franklin and Maurice Wilkins X-ray crystanography -Hersh very that DNA is the genetic material was the result of work by mal Briefly describe the contributions made by the following pe i lu showed genetic material was likely raft amount of codes WOD = +0 the amount of guanine is = to the amant of trojmine and rt or...
mays is a diploid species with 10 pairs of chromosomes in each somatic cell. How many chromosomes will be found per cell in each of the following chromosome mutants? Questions 64 to 67 are connected 64) Trisomy? E) 21 D) 30 A) 19 B) 22 65) Monosomy E) 21 A) 19 B) 22 C) 60 66) triploid E) 21 B) 22 67) Tetrasomy D) 30 E) 21 A) 19 B) 22 68) Species I has 2n -12 chromosomes and species...
Assume you found life in Mars. If the Martian genetic code used the nucleotide "A" as a spacer, and then the nucleotides T, C and G in triplers, how many different codons would be available? a) 3 b) 4 c) 8 d) 9 e) 12 f) 20 g) 27 h) 30 i) 64 would be purine rich (AG rich) d) Actually, it would be pyrimidine rich (TC rich) __17. Rosalind Franklin received the Nobel Prize for: a generating X-ray crystallographic...