Non-Mendelian Genetics Flashcards
nya! (20 cards)
A parent who
has two alleles for a gene can only pass on one allele or
the other to each offspring.
Mendel’s First Law (Law of Segregation)
Two or more traits are inherited separately from each
other; they don’t always occur together.
Mendel’s Second Law (Law of Independent Assortment)
One dominant
allele will take charge over a recessive allele and “mask” it.
The only way recessive alleles can be seen is if an
individual possesses two copies of the recessive allele.
Mendel’s Third Law (Law of Dominance)
They are basically any inheritance
patterns that don’t follow one or
more laws of Mendelian genetics.
Non-Mendelian Genetics.
A third (new) phenotype
appears in the heterozygous
condition as a BLEND of the
dominant and recessive
phenotypes.
Incomplete Dominance.
In the heterozygous condition, both alleles are
expressed equally with NO blending. Represented by
using two DIFFERENT capital letters.
Co-dominance.
There are more than two alleles for a gene, and the relationship of each allele with respect to others will determine the
number of phenotypes that may be expressed.
Multiple Alleles.
It refers to any substance that causes agglutination (“clumping together”)
of cells.
Agglutinin.
It is an antigen that stimulates the production of an agglutinin
Agglutinogens.
It is determined by the presence
or absence of certain antigens on the surface of red
blood cells.
Blood compatibility.
They are substances that can
trigger an immune response in the body
Antigens.
The two main antigens that determine blood type compatibility.
A and B antigens.
When incompatible blood types are mixed and the antibodies in the recipient’s plasma attack the foreign antigens, what does it lead to?
Agglutination.
Type A can donate blood to…
Type A and AB blood.
Type B can donate blood to…
Type B and AB blood.
Type AB can donate blood to…
AB blood.
Type O can donate blood to…
Type O, A, B, and AB blood.
It is a type of protein that is
found on the surface of red blood cells in most people. It is named after the rhesus
monkey, in which the protein was first discovered.
Rh factor.
In pregnancy, if a Rh-negative woman carries a Rh-positive fetus, there is a risk that her body
may produce antibodies that can harm the fetus. This condition is known as ____ _________ and can lead to a condition called hemolytic disease of the newborn.
Rh incompatibility.
Rh-negative women are often given a medication called __ ______ ______, which helps to
prevent the formation of antibodies against the
Rh factor.
Rh immune globulin.
