Chromosome Structure And Organelle Dna - Genetics A Conceptual Approach | Biology+

Course

Genetics

Study Pack

Set 1: Introduction to Genetics

Set 2: Chromosomes and Cellular Reproduction

Set 3: Basic Principles of Heredity

Set 4: Sex Determination and Sex-Linked Characteristics

Set 5: Extensions and Modifications of Basic Principles

Set 6: Pedigree Analysis, Applications, and Genetic Testing

Set 7: Linkage, Recombination, and Eukaryotic Gene Mapping

Set 8: Chromosome Variation

Set 9: Bacterial and Viral Genetic Systems

Set 10: DNA: the Chemical Nature of the Gene

Set 11: Chromosome Structure and Organelle Dna

Set 12: DNA Replication and Recombination

Set 13: Transcription

Set 14: Rna Molecules and Rna Processing

Set 15: The Genetic Code and Translation

Set 16: Control of Gene Expression in Prokaryotes

Set 17: Control of Gene Expression in Eukaryotes

Set 18: Gene Mutations and Dna Repair

Set 19: Molecular Genetic Analysis and Biotechnology

Set 20: Genomics and Proteomics

Set 21: Epigenetics

Set 22: Developmental Genetics and Immunogenetics

Set 23: Cancer Genetics

Set 24: Quantitative Genetics

Set 25: Population Genetics

Set 26: Evolutionary Genetics

Set 11 Chromosome Structure And Organelle Dna

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Set 11 Chromosome Structure And Organelle Dna

(Multiple Choice)

Free

Which of the following amino acids has a positive charge that helps to hold the DNA in contact with the histones?

A) alanine
B) arginine
C) leucine
D) valine
E) serine

Answer

(Short Answer)

Free

While working on Drosophila, you find a new mutant strain with an abnormal histone H3 gene. This novel histone mutant is predicted to cause the nucleosomes to bind an extra 15 bp of DNA compared to wild type. If you digest isolated chromatin with a nuclease to release the core nucleosomes, what size DNA fragments would you expect from wild-type and mutant flies?

Answer

In wild-type Drosophila, the core nucleo...

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(Multiple Choice)

Free

How does histone acetylation affect chromatin?

A) It loosens the chromatin and allows increased transcription.
B) It allows DNA to become resistant to damage.
C) It helps the histones have a greater affinity for DNA.
D) It inhibits DNA replication by making it more difficult to separate the DNA strands.
E) It causes the chromatin to become more condensed in preparation for metaphase.

Answer