EBK GENETICS: FROM GENES TO GENOMES
6th Edition
ISBN: 9781260041255
Author: HARTWELL
Publisher: MCGRAW HILL BOOK COMPANY
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Chapter 1, Problem 3P
The size of one copy of the human genome is approximately 3 billion base pairs, and it contains about 27,000 genes organized into 23 chromosomes.
| a. | Human chromosomes vary in size. What would you predict is the size of the |
| average chromosome? | |
| b. | Assuming that genes are spread evenly among chromosomes, how many genes |
| does an average human chromosome contain? | |
| c. | About half of the DNA in chromosome contains genes. How large (in base pairs) |
| is an average human gene? |
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A diploid plant cell contains 2 billion base pairs of DNA.
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The size of one copy of the human genome is approximately 3 billion base pairs, and it contains about27,000 genes organized into 23 chromosomes.a. Human chromosomes vary in size. What wouldyou predict is the size of the average chromosome?b. Assuming that genes are spread evenly amongchromosomes, how many genes does an averagehuman chromosome contain?c. About half of the DNA in chromosomes containsgenes. How large (in base pairs) is an averagehuman gene?
A diploid human cell contains approximately 6.4 billion base pairs of DNA. a. How many nucleosomes are present in such a cell? (Assume that the linker DNA encompasses 40 bp.) b. How many histone proteins are complexed with this DNA?
Chapter 1 Solutions
EBK GENETICS: FROM GENES TO GENOMES
Ch. 1 - Choose the phrase from the right column that best...Ch. 1 - If one strand of a DNA molecule has the base...Ch. 1 - The size of one copy of the human genome is...Ch. 1 - Indicate whether each of the following words or...Ch. 1 - a. How many different DNA strands composed of 100...Ch. 1 - RNA shares with proteins the ability to fold into...Ch. 1 - The human protein lactate dehydrogenase shown in...Ch. 1 - a. Are the triplets in the genetic code table...Ch. 1 - Why do scientists think that all forms of life on...Ch. 1 - Why would a geneticist study a yeast cell or a...
Ch. 1 - How can a scientist tell if a protein present in...Ch. 1 - Figure 1.6 shows the amino acid sequences of parts...Ch. 1 - Why do scientists think that new genes arise by...Ch. 1 - Explain how the exon/intron structure of genes...Ch. 1 - Mutations in genes that change their pattern of...Ch. 1 - A single zebrafish gene function was inactivated...Ch. 1 - Different mutations in the WDR62 gene that...Ch. 1 - Researchers have successfully used gene therapy to...Ch. 1 - By the time this book is published, it will likely...
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- If an average length of the double helix DNA in a dwarf coconut is 197.538 cm and one full turn of a typical DNA has ten base pairs with a length of 3.4 nm: How many base pairs would be present in such a chromosome? Show your solution. If the average length of all the chromosomes of a dwarf coconut is 197.538 cm in length, how many base pairs would be present in a coconut embryo? Show your solution.arrow_forwardCertain organisms contain cells that possess polytene chromosomes. What are polytene chromosomes, where are they found, and what function do they serve?arrow_forwardA diploid human cell contains approximately 6.4 billion base pairs of DNA. Assuming that the linker DNA encompasses 35 bp, how many nucleosomes are present in such a cell? Use two significant figures. How many histone proteins are complexed with this DNA? use two significant figures.arrow_forward
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