Biology Illinois Edition (Glencoe Science)
7th Edition
ISBN: 9780078759864
Author: Alton Biggs
Publisher: MCG
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Question
Chapter 11, Problem 31A
Summary Introduction
To hypothesize:
The need for telomeres.
Introduction:
Chromosomes are the structures that contain the genetic material that are passed from generation to generation of cells. A chromosome consist of two identical sister chromatids. The protective ends of the chromosomes are called telomeres. They are made of DNA associated with proteins.
Expert Solution & Answer
Answer to Problem 31A
- Telomeres are needed to protect the ends of chromosomes during cell division.
- They protect important genes at the end of chromosomes.
- They help in replication process.
- They are involved in aging and cancer.
Explanation of Solution
- Chromosomes have protective caps called telomeres that consist of DNA associated with proteins. The cap serves as a protective function for the structure of the chromosome. Without these DNA strands get damaged and cells don’t function properly.
- They protect the vital information in the DNA.
- Telomeres help in replication of DNA. They protect the vital genes from being deleted as DNA strands shorten during replication.
- Telomeres get shorter with age. So missing telomeres is a sign of aging and sometimes indicate cancer.
Chapter 11 Solutions
Biology Illinois Edition (Glencoe Science)
Ch. 11 - Prob. 1ACh. 11 - Prob. 2ACh. 11 - Prob. 3ACh. 11 - Prob. 4ACh. 11 - Prob. 5ACh. 11 - Prob. 6ACh. 11 - Prob. 7ACh. 11 - Prob. 8ACh. 11 - Prob. 9ACh. 11 - Prob. 10A
Ch. 11 - Prob. 11ACh. 11 - Prob. 12ACh. 11 - Prob. 13ACh. 11 - Prob. 14ACh. 11 - Prob. 15ACh. 11 - Prob. 16ACh. 11 - Prob. 17ACh. 11 - Prob. 18ACh. 11 - Prob. 19ACh. 11 - Prob. 20ACh. 11 - Prob. 21ACh. 11 - Prob. 22ACh. 11 - Prob. 23ACh. 11 - Prob. 24ACh. 11 - Prob. 25ACh. 11 - Prob. 26ACh. 11 - Prob. 27ACh. 11 - Prob. 28ACh. 11 - Prob. 29ACh. 11 - Prob. 30ACh. 11 - Prob. 31ACh. 11 - Prob. 32ACh. 11 - Prob. 33ACh. 11 - Prob. 34ACh. 11 - Prob. 35ACh. 11 - Prob. 36ACh. 11 - Prob. 37ACh. 11 - Prob. 38ACh. 11 - Prob. 39ACh. 11 - Prob. 1STPCh. 11 - Prob. 2STPCh. 11 - Prob. 3STPCh. 11 - Prob. 4STPCh. 11 - Prob. 5STPCh. 11 - Prob. 6STPCh. 11 - Prob. 7STPCh. 11 - Prob. 8STPCh. 11 - Prob. 9STPCh. 11 - Prob. 10STPCh. 11 - Prob. 11STPCh. 11 - Prob. 12STPCh. 11 - Prob. 13STPCh. 11 - Prob. 14STPCh. 11 - Prob. 15STPCh. 11 - Prob. 16STPCh. 11 - Prob. 17STPCh. 11 - Prob. 18STPCh. 11 - Prob. 19STPCh. 11 - Prob. 20STP
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