#Question id: 5470
#Unit 8. Inheritance Biology
Numerous pure breeding crosses are made between two inbred plant strains, one having a mean height at maturity of 96 cm and the other as 56 cm. The height of the F1 progeny at maturity averages close to 76 cm. Height of plant control by four pair of polygene. The F2 progeny show the following phenotype.
#Question id: 9170
#Unit 9. Diversity of Life Forms
Which of the following is an important feature of most terrestrial biomes?
#Question id: 4651
#Unit 11. Evolution and Behavior
Some members of a photosynthetic plant species are genetically resistant to an herbicide, while other members of the same species are not resistant to the herbicide. Which combination of events should cause the most effective replacement of the non-herbicide-resistant strain of plants by the resistant strain?
1. The presence of the herbicide in the environment
2. The absence of the herbicide from the environment
3. The maintenance of the proper conditions for one generation
4. The maintenance of the proper conditions for many generations
#Question id: 4820
#Unit 8. Inheritance Biology
Which of the following gametes are produced in grater proportional by an individual of genotype Ab/aB if the genes are in the same chromosome with some recombination between them?
#Question id: 3683
#Unit 3. Fundamental Processes
In some viruses, RNA serves as the storage of genetic materials and DNA is synthesized from RNA by the enzyme known as: