Science study guide mid-term review

what is the issue that Joe had that nobody else in his family had?

Colorblindness

What is the difference between acquired and inherited traits?

Inherited traits are passed on ( freckles,eye color) while acquired traits are traits you cannot pass on ( tattoos and piercings)

Which of the 2 can be passed onto the next generation?

Inherited traits

What are the 4 steps of seeing?

Light enters the eye, a chemical reaction happens and creates a signal, signal is sent to the brain through the optic nerve, brain process signal and makes a image.

Whether it was tasting or seeing…. Being able to stimulate your senses starts with this molecule on the outside of specialized cells.

Receptor Protein

What molecule category does the molecule belong to? Referring to the receptor protein

Protein category

What type of receptor Protein is responsible for our ability to see different colors of light?

Opsin protein

Explain what is different about Joe’s opsin receptor proteins in comparison to Becky’s? Explain how these differences in opsin protein affect the signals sent to the brain.

Joes opsin proteins are the same length sending 2 different signals to the brain at the same time making it hard for the brain to process it. Beckys are different lengths sending only 1 signal to the brain at a time.

what type of molecules and their structure impacts all our trait directly?

DNA

Ultimately all of our traits are controlled or coded for in this molecule

Genes

What is the central dogma of the molecular biology?

DNA makes RNA and RNA makes proteins ( process of gene expression)

Explain DNA vs. Genes

DNA is genetic blueprint while gene is just a specific segment of DNA

what is the shape of DNA?

Double helix