Docsity
Log inSign up
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search Store documents

The best documents sold by students who completed their studies

Search through all study resources
Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

University Rankings

Discover the best universities in your country according to Docsity users

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

From our blog

Exams and Study
Go to the blog

Chargaff's Rule​, Slides of Genetics

University of RedlandsGenetics

A. Read the text about Erwin Chargaff on the back page. EQ: How are Chargaff's results evidence for the base pairings in DNA? B. Graph the following data.

Typology: Slides

2021/2022

Uploaded on 09/27/2022

gaurish
gaurish 🇺🇸

4.7

(15)

235 documents

1 / 4

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Chargaff’s Rulename_________________________ per____
Due Wednesday 9/11 - graded
A. Read the text about Erwin Chargaff on the back page
EQ: How are Chargaff’s results evidence for the base pairings in DNA?
B. Graph the following data. Use color in your graph.
Think about how you will show the data. What is on the x-axis and what is on the y-axis?
Species
DNA Bases
% Adenine
% Cytosine
% Guanine
% Thymine
Yeast
31.3
17.1
18.7
32.9
Crab
47.3
2.7
2.7
47.3
Rat
28.6
21.5
21.4
28.5
Human
30.9
19.9
19.3
29.9
TITLE KEY
pf3
pf4

Partial preview of the text

Download Chargaff's Rule​ and more Slides Genetics in PDF only on Docsity!

Due Wednesday 9/11 - graded

A. Read the text about Erwin Chargaff on the back page

EQ: How are Chargaff’s results evidence for the base pairings in DNA?

B. Graph the following data. Use color in your graph.

Think about how you will show the data. What is on the x-axis and what is on the y-axis? Species DNA Bases % Adenine % Cytosine % Guanine % Thymine Yeast 31.3 17.1 18.7 32. Crab 47.3 2.7 2.7 47. Rat 28.6 21.5 21.4 28. Human 30.9 19.9 19.3 29. TITLE KEY

ANALYSIS QUESTIONS

  1. Which base (A, C, G, or T) appears in a similar/close to amount as a. thymine in yeast? _________________________________ b. cytosine in rats? _____________________________________ c. guanine in crabs? __________________________________ d. adenine in humans? _______________________________
  2. Chargaff’s experiment and data help us to understand that each base in DNA only bonds with one other base. Explain how his data is evidence for base pairings. Use actual data in your answer.
  3. You have just discovered Chargaff’s Rule! Why do you think different organisms have different amounts of A, C, G, & T? (HINT: What is different between organisms?)

Erwin Chargaff (1905-2002) was one of many scientists studying DNA in the 1940’s. He was interested

in the amount (%) of each base chemical compared to each other and how they were different across different organisms. Some of his results are in the table on the first page. He contributed the base pair rule to the discovery of the structure of DNA. He published his findings in 1950. Genetics: understand why structural changes to genes (mutations) may be harmful, beneficial or neutral to the structure and function of an organism. Highly Proficient (4) Proficient (3) Close to Proficient (2) Developing (1) ❏ Graph is high quality using and represents the data at a high level. ❏ Chimpanzee question in answered with thought and evidence. ❏ Data is used as evidence ❏ Graph shows the data ❏ Analysis questions are complete and show thought. ❏ Graph is incomplete or incorrect. ❏ Graph does not show the data clearly enough. ❏ Data is not used as evidence. ❏ Work is incomplete or needs more detail. ❏ no understanding is shown ❏ Mostly incomplete and/or incorrect.