Lessons on Genetics

Mechanisms of Genetics

by Stacy King

​Nucleotides

• ​Determines Genetic traits

​DNA

• ​Codes for proteins

  • ​keratin- hair protein

  • ​insulin- glucose regulation

  • ​hGH- growth hormone

Multiple Choice

Blood types such as A, B, AB, and O are a physical characteristic of anantigen located on an individuals red blood cell.  This is possible because DNA codes for a specific _______

• phosphate

• protein

• nucleotide

• thymine

DNA is Found in ALL Living Things​

• All living things MUST have

  • DNA

  • ​Ribosomes

  • ​Cell membrane

Multiple Choice

Dolphins and Humpback whales both are able to use echolocation to locate prey in murky/dark waters due to a common mutation of their cochlear nerve . Based on this information what is the probable conclusion?

• Dolphins and Humpback share common genes

• Dolphins and Humpbacks eat the same prey

• Dolphins are evolving into Humpbacks

• Dolphins and Humpbacks are found in the same regions

​DNA and Protein Synthesis TRANSCRIPTION

• ​DNA is the blueprints

• ​mRNA makes a copy

  • ​substituting Thymine with Uracil

    DNA code ATC CGA CAA

  • ​mRNA code UAG GCU GUU

​Transcription in Eukaryotes

​Occurs in the nucleus

​

​an inner protected membrane

Multiple Choice

During protein synthesis, an RNA strand is transcribed from one strand of DNA (GCG TTA CCT) What is the complementary RNA strand?

• CGC UUT CCT

• CGC AAU GGA

• GCG UUA CCU

• CGC AAT GGA

​Translation

• ​mRNA attaches to the ribosome

• ​tRNA transports the correct amino acids to bind

• ​rRNA helps bind amino acids together

• ​a protein is made

​Translation

​Occurs in the ribosome

Multiple Choice

WHAT IS #3 (ITS CARRYING AND AMINO ACID)

• T RNA

• M RNA

• R RNA

Multiple Choice

mRNA codon AAA codes for which amino acid

• ASPARAGINE

• LYSINE

• SERINE

• ARGININE