1. The definition of a gene is: a. the sum of genetic information in an organism b. a segment of DNA that carries the genetic information needed to make a protein c. the structure into which DNA is packaged d. a segment of RNA that carries the genetic information needed to make a protein 2. In the double-stranded DNA, the base pairs are: a. G-A and T-U b. G-C and A-U c. A-T and G-C d. A-U and G-C

1. The definition of a gene is: a. the sum of genetic information in an organism b. a segment of DNA that carries the genetic information needed to make a protein c. the structure into which DNA is packaged d. a segment of RNA that carries the genetic information needed to make a protein 2. In the double-stranded DNA, the base pairs are: a. G-A and T-U b. G-C and A-U c. A-T and G-C d. A-U and G-C

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter9: Molecular Biology

Section: Chapter Questions

Problem 6RQ: A promoter is ______. a. a specific sequence of DNA nucleotides b. a specific sequence of RNA...

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1. Two chains of DNA must run in directions and must be bond to each other. a. Opposite, Un-complementary b. Parallel, Complementary c. The same, Un-complementary d. Antiparallel, Complementary e. Parallel, Un-complementary 3. What is the term used for a protein -- if they are ---
1. During the replication of a DNA molecule, separation or "unzipping" of the DNA molecule will normally occur when hydrogen bonds are broken between a. thymine and thymine b. guanine and uracil c. adenine and cytosine d. cytosine and guanine 2. The individuality of an organism is determined by the a. sequence of nitrogenous bases in deoxyribonucleic acid b. number of amino acids in a cell c. position of the ribosomes on the endoplasmic reticulum d. number of nitrogenous bases in a codon 3. The weakest bonds in a double-stranded molecule of deoxyribonucleic acid exist between the a. deoxyribose sugars b. phosphate groups C. nitrogenous bases d. 5-carbon sugars
3)What would be the third amino acid produced by the DNA strand: T A C C G A G T C A C G (Hint: use the mRNA strand you already coded)
1. It is a large complex ribonucleoprotein particle that chemically modifies the pre mRNA strand by the removal of introns 2. This is a linkage between paired bases in the secondary DNA structure 3. It refers to the linkage between 2 nucleotides in the DNA molecule 4. Give the range of the number of nucleotides present in a single protein molecule 5. Identify the number of bases included in the nucleosome 6. It is an enzyme that cuts the bacterial plasmid at its cleavage site
1. Written below is a DNA seqeunce: G G C A A C T A T C C C G A T T A G C G C Write down the sequence for the complimentary DNA sequence 2. Written below is the DNA sequence of a gene: T A C C T A A G C G C C G G T C A T A T C A. Write down the mRNA sequence that would be transcribed from this DNA B. Write down the amino acid sequence that would be translated from the mRNA sequence 3. Written below is the DNA sequence of a gene: T A C G T G T T T A C T C C A C A T G A T A T C A. Write down the mRNA sequence that would be transcribed from this DNA B. Write down the amino acid sequence that would be translated from the mRNA sequence
3. translate the following sequence of messenger RNA nucleotides in a sequence of amino acids forming part of a polypeptide chain a. C-U-G-U-U-U-U-G-C-A-G-U-G-G-U-U b. write the sequence of nucleotides for the portion of a DNA molecule that served as a pattern or template for the formation of the messenger RNA above. c. A certain protein contains the following sequence of amino acids: isoleucine-serine-arginine-glutamic acid-serine-proline-valine-glutamic acid. Using the table found in your text, write the sequence of RNA triplet that would code for this sequence of amino acids. then write the sequence of DNA triplets that would code for the formation of RNA
5. Match the description to the molecule(s). Each choice will be used only once. a. DNA b. mRNA C. tRNA d. more than one of the above e. none of the above A molecule of this will always have an equal percentage of A and T and an equal percentage of C and G: Has an anticodon and carries an amino acid: Serves as a messenger for taking genetic information from the nucleus to the cytoplasm: Is involved in the process of translation: Is a component of ribosomes: 54 Copyright 2016 Pearson Education, Inc. Chapter 10: The Structure and Function of DNA WATS f12 16 f7 18 +1 f9 10 %24 4. 8 5.
1. Using the DNA provided transcribe DNA into MRNA. 2. Use the mRNA strand you created and break it up into codons. 3. Plug the codons into the amino acid chart to determine the correct amino acid needed to build that protein. 4. Identify the protein you made by comparing the sequence to the pictures 5. Answer the questions for each protein molecule you build before moving on to the next. Protein 1: DNA AAGACCGTATAC MRNA Amino Acid Sequence 1. Which kind of protein molecule did this gene make? 2. How does this protein help the body maintain homeostasis?
1. In the sequence grid below, you will fill in all boxes with end polarity, nucleotide, or amino acid as described below. a. The column to the far left identifies the sequence type. Based on the nucleotides given, fill in the words "template" and "coding" (non-template) for the two DNA strands as soon as you figure out which is which. (hint: look at mRNA) b. In the second and last columns, write the polarity of the ends of each sequence (5', 3', N or C). c. The remaining columns represent transcriptional and translational alignments. Fill in all nucleotides, assuming that the template sequences in the table are read from LEFT to RIGHT d. Using the mRNA codon table provided on the next page, determine the polypeptide sequence. This sequence is from the middle of a coding sequence, therefore you do not need a start sequence. T DNA DNA mRNA codon tRNA anticodon polypeptide DNA DNA mRNA codon tRNA anticodon A C polypeptide GLY A C G e. Repeat steps 1a-1d, but now assume that the template…
1. The first base in the tRNA anticodon loop is also wobbling, that is one tRNA is able to pair with several codons of mRNA. If the firs base of the anticodon is U, its complement in the codon is: a.A or C b.A or G c.C or G d.A or U 2. The probability of an offspring having all the recessive traits from the cross AaBBCc X AaBbCC is: a.one-sixteenth b.three-fourth c.zero d.nine-sixteenth 3. The probability of an offspring having all the dominant traits from the cross AaBBCc X AaBbCC is: a.three-fourth b.one-sixteenth c.nine-sixteenth d.zero
7. A mad scientist has all the molecules necessary for protein synthesis in a test tube. Included in this test tube are: template DNA from a giraffe, mRNA from a shark, tRNA from a yeast, ribosomes from a donkey and amino acids from a strawberry. If protein synthesis occurred, the proteins would be from which of the above sources? A. Strawberry B. Giraffe C. Shark D. Yeast E. Donkey Two indo
1.If the template DNA sequence is 3' - CCC - ATA - GAG - AAA - 5' , then what is the corresponding daughter strand sequence? A. 5' - GGG - UAU - CUC - UUU - 3 B. 3' - GGG - UAU - CUC - UUU - 5' C. 3' - GGG - TAT - CTC - TTT - 5' D. 5' - GGG - TAT - CTC - TTT - 3'