Genetics Test - (Solved) • A nitrogen base that is held toget...

Genetics Test

GRADED A+ (ACTUAL TEST ) Questions and Answers (Solved)

• A nitrogen base that is held together in DNA by a hydrogen bond. A pairs with T, G pairs with C.

Answer: Base Pair

• The shape of a DNA molecule resembling a spiral staircase.

Answer: Double helix

• The process in which DNA is copied. This occurs during the synthesis phase of the eukaryotic cell cycle. It begins when an enzyme breaks the hydrogen bonds between complementary bases in DNA. The two new DNA molecules that result each contain one strand from the parent molecule and one new strand that is complementary to it.

Answer: DNA replication

• The monomer that makes up nucleic acids. Consists of a Phosphate group, a 5 carbon sugar, and a nitrogenous base.

Answer: Nucleotide

• The "copy" of genetic instructions which takes the instructions to the cytoplasm

Answer: mRNA

• brings amino acids to the ribosomes

Answer: tRNA 1 / 2

• the transfer of genetic instructions in DNA to mRNA

Answer: transcription

• the process in which the genetic code in mRNA is read to make a protein-

Answer: translation

• Three different codons that tell the ribosome to stop making the protein.-

Answer: stop codon

• Three letters that code for a specific amino acid

Answer: codon

• a tRNA sequence that is complementary to the codon for an amino acid.

Answer: anticodon

• Join amino acids together to make proteins Answer: ribosome DNA ’ RNA ’ Protein: Central Dogma of Molecular Biology

• the concentration of adenine was always about the same as the concentration of thymine, and the concentration of guanine is always about the same as cytosone

Answer: Chargaff's rule

• Deoxyribonucleic acid, a self-replicating material present in the nucleus of eukaryotes as the main constituent of chromosomes.It is the carrier of genetic information.

Answer: DNA

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