Molecular Biology

What are three parts of a DNA nucleotide?

• Phosphate group

• Sugar

• Hydrogen

• Nitrogenous base

There are four bases that make up the DNA chain. What are the four bases

• Adenine

• Thymine

• Uracil

• Cytosine

• Guanine

We all know that the shape of DNA looks like a spiral staircase, but what is the name of shape called?

• Polynucleotide chains

• Double helix

• Twisted ladder

• Allele

What is RNA?

• A nucleic acid that processes all steps of protein synthesis in all living cells.

• A molecule that contains the genetic code of organisms.

• The process in which cells make proteins.

• A gene that is damaged or changed in a way to alter the genetic message carried by that gene.

DNA is very useful in the real world. Doctors use DNA to diagnose and treat conditions. What are some other ways DNA is used in the real world?

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Your body needs _______ to create muscles, regulate chemical reactions, transport oxygen, and perform other important tasks in your body.

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What is transcription?

• A molecule that contains the genetic code for organisms.

• The RNA → Protein part of the central dogma

• The DNA → RNA part of the central dogma of molecular biology

• The process in which cells make proteins

What is translation?

• The RNA → Protein part of the central dogma

• The DNA → RNA part of the central dogma of molecular biology

• The process in which cells make proteins

• A molecule that contains the genetic code of organisms.

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How many cells at least does your genes have?

• 50,000

• 30,000

• 20,000

• 40,000

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What are some of the stages where gene expression is regulated.

• Transcription

• Translation

• RNA transport

• Chemical and structure modification of DNA or chromatin