Examlex
Suppose the ancestral nucleotide at position 786 is A, and the same substitution from A to G occurs in both descendant lineages. This substitution would be called a _______ substitution.
Huntington Disease
A hereditary neurodegenerative disease characterized by motor dysfunction, cognitive decline, and psychiatric issues.
Twenty-First Chromosome
One of the 23 pairs of chromosomes in humans, with an abnormality in this chromosome causing Down syndrome.
Down Syndrome
A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, associated with physical growth delays, characteristic facial features, and mild to moderate intellectual disability.
Homozygous
Having two identical alleles for a trait.
Q1: A sea squirt is thought to be
Q32: Which of the following properties of HIV
Q85: Which type of speciation is most common
Q94: Which of the following is the most
Q102: The half-life of a particular radioactive isotope
Q104: In modern systematics, each family name is
Q112: A gene found in E. coli is
Q113: Subpopulations often vary genetically from one another
Q119: The appearance of multicellular organisms coincided with
Q121: Kimura's _ theory of molecular evolution proposes