Lactose Intolerance Mid Unit

Do you see patterns in the geographic distribution of the black and white dots? Describe the patterns you see.

Northern European countries are most likely lactose persistent and East Asians are most likely lactose intolerant

What is exactly different about people who are lactose persistent and people are aren’t?

People who are lactose persistent (Northern European countries) produced lactase allowing them to digest dairy and people who aren’t don’t have the lactase enzyme.

Lactose

A sugar found in milk made of glucose and galactase bonded together

Lactase

A enzyme that’s needed to break down the sugar lactose into glucose and galactose

Enzyme

A protien that speeds chemical reactions

Lactose-tolerant people ____can consume dairy products because they do produce the lactase enzyme. This means that the blood glucose in these people will__ __*increase after 60 mins after they consume dairy, because lactose*__ _____will be broken down into glucose and galactase

can, do, increase, will

Lactose intolerant people ___cannot consume dairy products because they do not produce the lactase enzyme. This means that the blood glucose in these people will__ __*decrease after 60 mins after they consume dairy, because lactose*__ _____will not be broken down into glucose and galactase

cannot, do not, will not

Lactose persistent model

Lactose Intolerant model

Lactose intolerant

A person that can’t digest sugar lactose and they don’t produce lactase

Lactose tolerant

A person that can digest sugar lactose and they do produce lactase

Traits

Characteristics that are different from everybody and some are inherited from parents

DNA

genetic matieral that organisms inherit from parents

Genes

segments of DNA that have information needed to make a protein

Proteins

A specific arragement of amino acids that is needed to preform a special function

Gene example

DNA Nucleotide

What goes together first in DNA?

Adenine pairs with Thymine

What goes next in DNA?

Guanine pairs with Cytosine

What is the structure of DNA?

DNA is a double helix structure made from 2 linked strands

What is the structure of DNA?

The backbone of each strand is made up of alternating pentose sugar molecule along with the phosphate group

What is the structure of DNA?

The strands are linked together by hyfrogen bond based on the 4 nitrogen bases

DNA Nucleotide

Includes pentose sugar molecule and phosphate group. the indivudal monomers of DNA (Adenine, Thymine, Cytosine and Guanine)