Explore BrainMass
Share

Explore BrainMass

    Genetics: DNA and Chromosome Problems

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    1. Each cell of the human body contains 46 chromosomes.
    a. How many DNA molecules does this statement represent?
    b. How many different types of DNA molecules does it represent?

    2. DNA is extracted from cells of Neurospora, a fungus that has one set of seven chromosomes; pea, a plant that has two sets of seven chromosomes; and housefly, an animal that has two sets of six chromosomes. If powerful electrophoresis is used to separate the DNA on a gel, how many bands will each of these three species produce?

    © BrainMass Inc. brainmass.com October 9, 2019, 6:40 pm ad1c9bdddf
    https://brainmass.com/biology/dna-chromosomes-and-genomes/genetics-dna-chromosome-problems-94086

    Attachments

    Solution Preview

    1. Each cell of the human body contains 46 chromosomes.
    a. How many DNA molecules does this statement represent?
    b. How many different types of DNA molecules does it represent?

    Response: Since there are 46 chromosomes in each cell, there are 46 DNA molecules in each cell. Each chromosome represents 1 VERY LONG DNA molecule. However, since each chromosome is present in ...

    Solution Summary

    This solution helps with DNA and chromosome problems. Detailed solutions are given for each problem.

    $2.19