Genetics and ABO Systems Flashcards

Fill-in-the-blank practice flashcards covering basic genetics terms, ABO blood group inheritance, and Mendelian laws.

A segment of DNA on a chromosome coding for a specific protein structure that determines physical traits is called a __________.

gene

The specific site of a gene on a chromosome is known as a __________.

locus

A different form of a gene located at a single locus is called an __________.

allele

Blood type is considered __________ because it is the result of a gene's expression.

phenotypical

The actual gene composition or genetic makeup of an individual is called their __________.

genotype

Molecular testing that determines a person's genetic makeup is known as Polymerase chain Reaction, abbreviated as __________.

PCR

The ABO system exhibits __________, meaning that there is no dominant blood type and both alleles are fully expressed in the phenotype simultaneously.

codominance

According to Mendelian's Law of Segregation, a child inherits __________ gene from each parent.

1

If a child is phenotypically type A, they can be inferred to inherit either an A/A homozygous gene or an A/O __________ gene in loci.

heterozygous

A gene that does not express a detectable antigen is defined as an __________.

amorph