The criteria that could be used to establish the credibility of the dinosaur sequence extracted from the dinosaur bone. Introduction: Dinosaurs are an extinct group of reptiles. They first appeared in the Triassic period. At that time, they were dominant terrestrial vertebrates and ruled the land. Modern time birds and reptiles have been said to be derived from dinosaurs, with the course of evolution. The largest dinosaur of the 40 feet fossil was found to be that of Tyrannosaurus rex.

Question

Want to see the full answer?

Answer 1

Question

Chapter 29, Problem 11EQ

Summary Introduction

To review:

The criteria that could be used to establish the credibility of the dinosaur sequence extracted from the dinosaur bone.

Introduction:

Dinosaurs are an extinct group of reptiles. They first appeared in the Triassic period. At that time, they were dominant terrestrial vertebrates and ruled the land. Modern time birds and reptiles have been said to be derived from dinosaurs, with the course of evolution. The largest dinosaur of the 40 feet fossil was found to be that of Tyrannosaurus rex.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

In 1979, bones found outside Ekaterinburg, Russia, were shown to be those of Tsar Nicholas and his family, who were executed in 1918 by a Bolshevik firing squad in the Russian Revolution . To prove that the skeletons were those of the royal family, mtDNA was extracted from the bone samples, amplified by PCR, and compared with mtDNA from living relatives of the tsar’s family. Q. Mitochondrial DNA from which living relatives would provide useful information for verifying that the skeletons were those of the royal family?

How do you know if the halibut you purchased at the supermarket is really halibut? To identify the source of a biological sample, scientists PCR amplify and then sequence a region of DNA known to vary between species. For animals, this DNA region is a 648-base pair portion of the mitochondrial cytochrome oxidase I gene. The sequence of this mtDNA region acts as a so-called DNA barcode because a database exists that contains the sequences of this mtDNA region that are unique for hundreds of thousands of animal species. A) Why do you think that a region of mitochondrial DNA is used for barcoding animals, as opposed to a region of nuclear genomic DNA?

A researcher used polymerase chain reaction (PCR) to test four individual nematodes for the presence of a mutation in Gene Y. When amplified, the fragments of DNA containing the mutated gene alleles were 250 base pairs long and the normal (wild type) alleles were 350 base pairs long. To identify the genotypes of the individual nematodes, the researcher used gel electrophoresis to visualize the PCR results. 1.000 bp 500 bp 300 bp 200 bp 100 bp Remember that these nematodes are diploid organisms and as such, inherited two copies of Gene Y. Which of the following statements is a correct analysis of these results a) Nematode As homozygous for this gene and has two copies of the mutated allele. O b) Nematode C is heterozygous for this gene and has one copy of the mutated allele and one copy of the normal (wild type) allele. O) Nematode D is heterozygous for this gene and has one copy of the mutated allele and one copy of the normal (wild type) allele. ) d) Nematode B is homozygous for this…