A soil with approximately what percent of humus
is best for plant growth?
a. greater than 90
b. 15
c. 50
d. less than 10
e. 30
Answer: b
You might also like to view...
Mendel's understanding of the inheritance of traits in peas, expressed in modern language, included: Check all that apply.
_____ parents transmit information encoded in genes. _____ each individual contains two genes for each trait. _____ not all genes are identical; alternative forms (alleles) exist. _____ each of the alleles present in an individual is discrete. _____ if a given allele is present, its effects will be seen in the individual.
What is the key concept addressed by the question?
What will be an ideal response?
In a classic experiment from the 1930s, a biologist conducted selective breeding experiments involving maze-running behavior in rats
He repeatedly bred together males and females that made the fewest mistakes, and he also bred together males and females that made the most mistakes. After eight generations, all mice that descended from "maze-smart" parents were better at running the maze than all mice that descended from "maze-dumb" parents. This study indicates that A) rats move through a maze randomly. B) trial-and-error learning in rats appears to have a genetic component. C) maze running is a purely learned behavior. D) nothing can be concluded about maze-running behavior in rats. E) maze running is a purely innate behavior in rats.
Which of the following functional groups is capable of regulating gene expression?
A) -OH B) -COOH C) -CO D) -CH3