Deck 3 (slides 11-16) Flashcards
(25 cards)
ABO blood group proteins are also found on _____ blood cells.
Red
ABO blood group proteins have ____ alleles (_________ alleles).
3, multiple
Multiple alleles of ABO blood group proteins shows __________.
Codominance
The proteins on red blood cells are called __________.
Antigens
Recessive genes for genetic diseases are on chromosomes __ - ___.
1-22
Phenylketonuria (_____) is a gene on chromosome 12.
PKU
PKU lacks an ________ needed to digest phenylalanine (an _______ acid).
Enzyme, amino
This enzyme is found in _______ and Nutra-Sweet brand artificial sweetener (aspartame).
Milk
A newborn with PKU would have phenylalanine build-up in body tissues during the first year of life, which causes severe ________ ___________.
Mental retardation
Newborns can be tested for PKU and placed on a ______ phenylalanine diet that ________ the effects of PKU.
Low, prevents
This is why mothers are told not to drink _______ _______ when pregnant.
Diet soda
________-________ is caused be a recessive allele found mostly in Jewish families of central and Eastern European ancestry.
Tay-Sachs
A person with Tay-Sachs is missing an _________ needed to break down excess _______ waste in the brain.
Enzyme, fatty
In someone who has Tay-Sachs, fat builds up in the _______ resulting in the breakdown of the nervous system and _______ in the first few years of life.
Brain, death
There is no _________ for Tay-Sachs.
Treatment
There is a _____ for the allele of Tay-Sachs; it informs parents whether they are at ______ for having a child with Tay-Sachs; done with a DNA ______.
Test, risk, probe
The most common genetic disorder for white caucasians is _________ _________ (CF).
Cystic Fibrosis
Cystic Fibrosis is chased be a recessive allele on chromosome ___.
7
The bad gene for Cystic Fibrosis results from the _______ of 3 DNA bases in the middle of the sequence for the protein (________ protein).
Deletion, CFTR
The CFTR protein is found in cell _________ and is responsible for the passage of ____ Jon’s into the cell.
Membranes, Cl-
The deletion of the 3 DNA bases causes the removal of ____ amino acid from the large CFTR protein, causing the protein to _____ improperly.
1, fold
Therefore, the cells are unable to _______ Cl- ions.
Transport
This results in the production of abnormally thick ______ in the lungs and digestive system.
Mucus
Then, the lungs become ________ with thick mucus, causing serious lung ________.
Clogged, infections