BIO 181 Extra Credit Assignment 4 DNA Structure

docx

School

Pima Community College *

*We aren’t endorsed by this school

Course

181IN

Subject

Biology

Date

Dec 6, 2023

Type

docx

Pages

Uploaded by AgentGrasshopperPerson40

BIO181 Extra Credit Assignment 4 DNA Structure 5 points possible Name: Romello Bryant Due Date Deadline: Sunday September 20, at 11:30 pm To do this exercise, you will need to go to the links below and click on “Launch Interactive” and answer the associated questions on this document. 1.0. The chemical structure of DNA https://www.biointeractive.org/classroom-resources/chemical-structure-dna 1.1 Explain in 5 to 6 sentences the structure of DNA. Two strands that form a double helix make up the DNA molecule. When we unwind the double helix and look deeper at the molecule, we can see that it is made of nucleotide-bonded building block. If we inspect the chain closely, we can see that each chain is bound from one end to the other. They consist of the same basic components for each bonded nucleotide. Deoxyribose sugar molecules (the nucleotide's backbone), nitrogen bases including four distinct DNA forms, and nucleotides are chemically bound to phosphodiester bonds. 1.2. Which bases are the pyrimidines, and which are the purines? Purines: Adenine and Guanine Pyrimidines: Thymine and Cytosine 1.3. What is meant by antiparallel? Both the DNA double helix strands can grow in 5 'to 3' direction, but they grow in opposite directions because of the sugar molecule's opposite orientation in them. The antiparallel alignment permits the base pairs to complement each other. 1 of 2

1.4 Copy and paste a picture below (it can be from the video) of a DNA sugar indicating its 5’ and 3’ carbons. 1.5 What is the significance of the 5’ and 3’ carbon? The significance of the 5’ and 3’ carbon is that they are used the show the orientation or direction of the DNA strand. 2.0 How DNA is packaged. https://www.biointeractive.org/classroom-resources/how-dna-packaged This video is less than 2 minutes long. Outline in your own words below what is discussed and animated in the video. To begin, what was discussed in the video was the way that DAN is tightly packed into a cell. The video begins by showing and telling how eight histone proteins latch onto a strand of a DNA and begin to create a nucleosome, this is repeated over and over again until many nucleosomes are stacked on each other, which the end result is a fiber of packed nucleosomes known as chromatin. The loop is still repeated over and over again until the strands of DNA are tightly packed are visible enough to see. 2 of 2

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

Related Documents

02-09_task2.docx

Critical Thinking Assignment Module 3 F2020 copy.docx

Week 2 Discussion Worksheet.docx

homework 10.docx

homework 09.docx

Week 5 Discussion Worksheet Answer Key.pdf

WK2Assign_Lehman_K (1).docx

UV Lab.pdf

ANOVA results-1.docx

Week 11 laboratory reflection - Microscopy and Protista.pdf

Life's A Buzz Module 2 LIT 5353.pdf

Psych tutorial 4.docx

Recommended textbooks for you

Human Heredity: Principles and Issues (MindTap Co...

Biology

ISBN:9781305251052

Author:Michael Cummings

Publisher:Cengage Learning

Comprehensive Medical Terminology

Nursing

ISBN:9781133478850

Author:Jones

Publisher:Cengage

Biochemistry

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Cengage Learning

Biochemistry

ISBN:9781305961135

Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:Cengage Learning

Biology 2e

Biology

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:OpenStax

SEE MORE TEXTBOOKS

Recommended textbooks for you

Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Comprehensive Medical Terminology
Nursing
ISBN:9781133478850
Author:Jones
Publisher:Cengage
Biochemistry
Biochemistry
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Cengage Learning
Biochemistry
Biochemistry
ISBN:9781305961135
Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax