Which is the largest among the followings? a. Nucleotide b. Nitrogenous base c. Phosphate d. Carbon Based on the locations of centromeres, what type describes a centromere locates slightly away from the mid-point so that the two arms are unequal? a. Telocentric b. Acrocentric c. Submetacentric d. Metacentric

Which is the largest among the followings? a. Nucleotide b. Nitrogenous base c. Phosphate d. Carbon Based on the locations of centromeres, what type describes a centromere locates slightly away from the mid-point so that the two arms are unequal? a. Telocentric b. Acrocentric c. Submetacentric d. Metacentric

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter15: Genomes And Genomics

Section: Chapter Questions

Problem 10QP: What percentage of the DNA in the genome actually corresponds to genes? How much is actually...

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Refer to the DNA models below. a. In what ways are they similar?b. In what ways are they different?
Refer to Figure 2 and compare this with the DNA model in Figure 1. a. In what ways are they similar? b. In what ways are they different? c. What is the biological significance of such differences? Why is the DNA referred to as the genetic material?
Which of the following regions of a genome would be most likely to be a SINGLE CRE? A. A section of DNA that is 10 base pairs long B. A section of DNA that is 50 base pairs long C. A section of DNA that is 200 base pairs long D. A section of DNA that is 1500 base pairs long
An explorer discovers a strange new species of plant and sends some of the plant tissue to a geneticists to study. The geneticist isolates chromatin from the plant and examines it with an electron microscope. She observes what appeared to be beads on a string. She then adds a small amount of nuclease, which cleaves the string into individual beads that each contain 280 base pair of DNA. After digestion with more nuclease, a 120 base pair fragment of DNA remains attached to a core of histone proteins. Analysis of the histone core reveals histones in the following proportions. On the basis of these observations what conclusions could the geneticists make about the probable structure of the nucleosome in the chromatin of this plant?
What is the function of resolvase in recombination? a. It unwinds double-stranded DNA. b. It allows a single DNA strand to invade a DNA helix. c. It displaces one of the original DNA strands during branch migration. d. It cleaves the Holliday structure.
What did the Hershey / Chase experiments (above) demonstrate about the molecules responsible for genetic inheritance patterns in the T2 bacteriophage? A. the genetic material consists of carbohydrates, not RNA B. the genetic material consists of protein, not lipids C. the genetic material consists of DNA, not polypeptides D. the genetic material consists of protein, not DNA E. the genetic material consists of lipids, not polypeptides
Can you cite a situation in which it shows how important two strands on the same chromosome have identical genetic information?
Imagine that you need to run an experiment that requires you to alter the current genetic make of your organism. You have two options: using nitrite or acridine orange. Which one would you choose considering the effectiveness of the treatment and why? State in no more than 3 sentences.
in the human genome project, scientists have identified the sequence of the base pairs of the human chromosome, and are working to determine what?
What would happen if a chromosome didn't have telomeres, or telomerase was faulty?
An explorer discovers a strange new species of plant and sends some of the plant tissue to a geneticist to study. The geneticist isolates chromatin from the plant and examines it with an electron microscope. She observes what appear to be beads on a string. She then adds a small amount of nuclease, which cleaves the string into individual beads that each contain 280 bp of DNA. After digestion with more nuclease, a 120- bp fragment of DNA remains attached to a core of histone proteins. Analysis of the histone core reveals histones in the following proportions: H1 12.5% H2A 25% H2B 25% H3 0% H4 25% H7 (a new histone) 12.5% On the basis of these observations, what conclusions could the geneticist make about the probable structure of the nucleosome in the chromatin of this plant?
Using the figure below identify: What is a function of introns and exons? What is a role of mobile DNA elements? What is a meaning of simple-sequence DNA?