sequence of many codons in a DNA molecule

which of the following does not occur at the ribosome

most of the cell's DNA is stored there

which of the following statements is true:

DNA molecules are in the shape of a double helix

each DNA molecule is a single gene

mRNA molecules are in the shape of a double helix

the human body is composed mostly of

oxygen, nitrogen, hydrogen, and carbon

oxygen, hydrogen, calcium, and iron

calcium, iron, phosphorous, and zinc

which of the following statements is true about DNA

at the beginning of protein synthesis, a section of DNA molecule unwinds and unzips

all of our DNA is normally located in the nucleus of the cell

DNA is composed of amino acids, phosphates, sugars and bases

which of the following is true about the protein synthesis process

the transfer RNA leaves the nucleus and goes out to the ribosomes in the cytoplasm where proteins are assembled with the help of messenger RNA

when a section of DNA molecules unzips and unwinds along its bases, a transfer RNA forms by copying one side of the DNA

which statement is true about the structure of a double stranded DNA molecule?

the diameter of a DNA molecule is the same along its entire length due to the specific complementary base pairing of the DNA nucleotides

the nucleotide is one strand of DNA held together by hydrogen bonds

the nitrogenous bases in one strand are held to the nitrogenous bases of the other strand by phosphodiester bonds

purine nucleotides always form base pairs with other purines, and pyrimidine nucleotides always form base pairs with other pyrimidines

which DNA molecule would be more stable under conditions of increasing temperature

a DNA molecule that has more guanine and cytosine of increasing temperature

a DNA molecule that has more adenine and thymine nucleotides

Both DNA molecules would be equally stable under conditions of increasing temperature

translation is the process by which:

ribosomes synthesize protein from information in an RNA molecule

the RNA molecule is used to repair damage to a related DNA molecule

a section of DNA is used as information to generate an RNA molecule

information in DNA is used to synthesize an exact copy of DNA

what is the role of messenger RNA

to bring the DNA message to the ribosome

to bring the DNA message tot the mitochondrion

to bring the tRNA message to the nucleus

to take amino acids to the ribosomes

when transcription occurs, what molecules are involved

DNA, mRNA, amino acids, and rRNA

when translation occurs what molecules are involved?

DNA, mRNA, rRNA, and amino acids

mollys bio test

Authored by deanna hall

Biology

University

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

the DNA code is:

found only in animals

unique to humans

shared by all living things

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

__________ are organic molecules that have the function of starting and regulating chemical reactions

carbohydrates

enzymes

lipids

endoplasmic reticula

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

amino acids are the building blocks of...

DNA and RNA

proteins

lipids

carbohydrates

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

portions of DNA molecules that do not contain the codes for proteins are called:

exons

introns

mutagents

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

which of the following statement is true regarding the DNA code?

not all codons specify amino acid components to be included in a protein

each of the 64 types of codons in DNA and RNA code for a different amino acid

DNA replication has a built-in-mechanism that prevents or corrects all errors

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

which of the following is true about DNA replication?

One DNA molecule becomes two identical ones as a result of this process

it occurs during meiosis but not mitosis

it is part of the protein synthesis

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

a DNA codon consists of:

2 nucleotides

1 nucleotides

hundreds of nucleotides

3 nucleotides

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mollys bio test

the DNA code is:

__________ are organic molecules that have the function of starting and regulating chemical reactions

amino acids are the building blocks of...

portions of DNA molecules that do not contain the codes for proteins are called:

which of the following statement is true regarding the DNA code?

which of the following is true about DNA replication?

a DNA codon consists of:

a gene is a:

which of the following does not occur at the ribosome

each tRNA anticodon has three bases. the three base combinations are codes for attracting specific kinds of:

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