bio nov 9 pt 3

What is the most likely location where ribosomes serve as sites for protein synthesis in a eukaryotic cell? Multiple choice question. within the cristae of the mitochondria attached to the Golgi body attached to the endoplasmic reticulum within the nucleus

er

The production and usage of a gene's product is called gene

expression

Rank the phases of translation in order of occurrence, beginning with the first phase at the top

initiation elongation termination

Select all of the following that are involved in translational initiation. Multiple select question. release factors initiator tRNA start codon stop codon mRNA

initiator tRNA start codon mRNA

Each ribosomal subunit is composed of rRNA and many

protein

Erwin Chargaff determined that the number of like guanine and adenine always equal the number of like cytosine and thymine.

purines and pyrimidines

Select all that apply Select the stages of translation. Multiple select question. termination replication initiation elongation ligation

termination initiation elongation

There are a total of 64 codons available in the genetic code. How many of these codons will code for a specific amino acid? Multiple choice question. 64 46 61 3

61

In the 1940s, scientists had concluded that the genetic material was most likely either or .

DNA or Proteins

The synthesis of new DNA double helix molecules from a pre-existing parent molecule is called Blank______. Multiple choice question. DNA replication DNA genesis translation transcription

DNA replication

The purpose of mRNA is to carry information from to the .

Dna to Ribosome

Select the findings of Erwin Chargaff regarding DNA composition. Multiple select question. C = T G = C G = A A = T pyrimidines = purines

G = C A = T pyrimidines = purines

Select the reasons why early molecular geneticists knew that the genetic material needed to be a stable molecule. Multiple select question. It must be copied during transcription. It needs to be replicated accurately. It must be able to pass from one generation to the next. It needs to exist at high temperatures.

It needs to be replicated accurately. It must be able to pass from one generation to the next.

In the 1940s, why was protein considered to be the source of genetic material? Multiple choice question. Proteins are easily denatured. Proteins contain 4 amino acids that act as the building blocks for the genetic information. Proteins contain 20 amino acids that can be sequenced in a variety of ways. Nucleic acids had not been discovered at that point.

Proteins contain 20 amino acids that can be sequenced in a variety of ways.

in the 1940s, why was protein considered to be the source of genetic material? Multiple choice question. Proteins contain 4 amino acids that act as the building blocks for the genetic information. Proteins are easily denatured. Nucleic acids had not been discovered at that point. Proteins contain 20 amino acids that can be sequenced in a variety of ways.

Proteins contain 20 amino acids that can be sequenced in a variety of ways.

What is the name of the enzyme complex responsible for synthesizing a new RNA molecule through nucleotide binding? Multiple choice question. RNA polymerase DNA polymerase DNA reductase RNA reductase

RNA polymerase

The enzyme that is responsible for catalyzing the process of transcription is called

Rna and polymerase

Which scientist's X-ray diffraction data helped to demonstrate the double helix structure of DNA? Multiple choice question. James Watson Rosalind Franklin Erwin Chargaff Francis Crick

Rosalind Franklin

Which of the following are the two new nucleotides that have been created by the company Synthorx? Multiple select question. H X Y Z

X Y

New synthetic nucleotides have been inserted into E. coli bacteria to increase the number of they can produce, which can help with the development of new drugs and other applications.

amino acids

Protein synthesis (translation) occurs at which of the following locations within eukaryotic cells? Select all that apply. Multiple select question. Golgi apparatus phospholipid bilayer cytoplasm rough endoplasmic reticulum nucleus

cytoplasm rough endoplasmic reticulum

Rosalind Franklin's X-ray diffraction photograph demonstrated that DNA Multiple choice question. contained base pairs. was a double helix. contained equal proportions of purines and pyrimidines. used a triplet code for storing information. was formed from nucleotides.

double helix

Which organism would have the most complex control of gene expression? Multiple choice question. archaea bacteria fungi

fungi

elect the characteristics of translation. Multiple select question. involves ribosomes results in a protein product involves RNA polymerase occurs in eukaryotic nuclei involves an mRNA molecule

involves ribosomes results in a protein product involves an mRNA molecule

Which molecule carries genetic information from the DNA to the ribosome? Multiple choice question. mRNA DNA tRNA rRNA

mRNA

Which of the following are components of a nucleotide? Multiple select question. nitrogen-containing base amino acid pentose sugar phosphate lipid chain

nitrogen-containing base pentose sugar phosphate

select the characteristics researchers suspected the genetic material would have prior to the discovery that the genetic material was DNA. Multiple select question. passes from one generation to the next uses a triplet code ability to store information accurate replication comprised of nucleotides

passes from one generation to the next ability to store information accurate replication

Select all that apply Which of the following are components or structures of a ribosome? Multiple select question. ribosomal RNA large subunit DNA protein small subunit transfer RNA

ribosomal RNA large subunit protein small subunit

During initiation, Multiple choice question. the polypeptide is released from the ribosome. the DNA unwinds and unzips. amino acids are brought to the ribosome sequentially. the ribosomal subunits assemble.

the ribosomal subunits assemble.

Molecules of mRNA, tRNA, and rRNA are produced by the process of

transcription

The process by which an RNA strand is synthesized from a DNA template strand is called

transcription

The production of mRNA from a DNA template occurs during Multiple choice question. transcription. translation. Reason: Translation is the process whereby ribosomes use the sequence of codons in mRNA to produce a polypeptide with a particular sequence of amino acids. replication. termination.

transcription

The genetic code is said to be a(n) code, because a set of three nucleotide bases codes for a particular amino acid.

triplet

True or false: All three major types of RNA are produced by transcription of DNA. True false question.TrueFalse

true