Which of the following is the meaning of the chromosome theory of inheritance as expressed in the early 20th century?
A) Individuals inherit particular chromosomes attached to genes.
B) Mendelian genes are at specific loci on the chromosome and in turn segregate during meiosis.
C) Homologous chromosomes give rise to some genes and crossover chromosomes to other genes.
D) No more than a single pair of chromosomes can be found in a healthy normal cell.
E) Natural selection acts on certain chromosome arrays rather than on genes.
Levels of DNA packaging to create a chromosome
Inheritance of an autosomal dominant disorder
Cytoplasmic Inheritance
A diagram of chromosome 13, showing the retinoblastoma (RB1) locus
Autosomal recessive inheritance
For each chromosome type in the body, there are two copies. One is from the mother, and one is from