_____________ involves the transmission of genetic material from one generation to another.
Nutrition
Reproduction
Respiration
None of these
The last or 23rd pair of chromosomes is known as ________________.
autosomes
sex chromosomes
Y chromosomes
none of these
The cause of similarities between individuals of a species is
Heredity
Variation
Genetics
Mutation
The gene which cannot express itself in the presence of the dominant gene is the __________
_______________ are the carriers of hereditary units, the genes.
DNA
chromosomes
nucleus
Inheritance of defective tooth enamel is an example of ________________.
X-linked recessive inheritance
Y-linked inheritance
X-linked dominant inheritance
The outward expression of an organism as a result of gene action is
Recessive
Phenotype
Genotype
