If R = red and r = white, what would be the result of a cross between a heterozygous female (red-eyed with one recessive allele) and a recessive male? A. 25% red-eyed female, 25% white-eyed female, 25% red-eyed male, 25% white-eyed male
B. 25% white-eyed male, 25% red-eyed male, 50% and red-eyed female offspring
C. 0% chance of white-eyed flies

The table below shows the number of foot bones in some horse fossils.horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s

Which would be the most useful source of evidence to support mcneill's contention?

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome