Assuming (i) that the two chromosomes in an homologous pair carry different alleles of some genes and (ii) that no crossing-over takes place, how many genetically different offspring could anyone human couple potentially produce? which of these two assumptions (i or ii) is more realistic?

What is the primary function of the nervous system?

Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.

When does an organism become an adult during a life cycle? a)before metamorphosis is complete b)after producing offspring c)after development is complete d)before gametes fuse