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Which of the following  are considered extranuclear inheritance?

Human secondary sex ratio varies based on ethnicity and socioeconomic status.

A woman with type M antigen on her red blood cells marries a man with type N antigen on his red blood cells.  All their children have both M and N antigens on their red cells.  This is an example of ____.

The particular position of a gene on a chromosome is known as a(n) _______________.

Hair color is determined in Labrador retrievers by alleles at the B and E loci. A dominant allele B encodes black pigment, whereas a recessive allele b encodes brown pigment. Alleles at a second locus affect the deposition of the pigment in the shaft of the hair; dominant allele E allows dark pigment (black or brown) to be deposited, whereas recessive allele e prevents the deposition of dark pigment, causing the hair to be yellow. A black female Labrador retriever was mated with a yellow male. Half of the puppies were black and half were yellow. If the genotype of the black female parent was Bb Ee, then what was the genotype of the other parent?

Two or more forms of a gene that occur at the same locus on homologous chromosomes are called _____________________. 

For a given locus/gene in a population with two alternative alleles, the allele frequencies are  p + q = 1.0.

The total genetic information carried by all members of a population is called ___.

Each sperm cell of a horse contains 32 chromosomes. How many chromosomes are in each of the horse’s somatic (body) cells? 

Which type of selection led to the variety of dog breeds that exist today?