In cattle, long horns (L) are dominant over short horns (l) and a black coat (B) is dominant over a white coat (b). (3 marks) Determine the phenotypes (ratio) of the following cross: llBb x Llbb – parental genotype

What is the ecological role of food chains and food webs

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.

Which genetic disorders, caused by an extra x chromosome (xxy), is characterized by a lack of testicular development in males, effeminate features, possible mental impairment, and a thin stature?