In one type of dog, black spots (8) are dominant over brown spots (b) and long tails (l) are dominant over short tails (1). use the dihybrid cross for parents with the
genotypes bbli and boli and determine the likelihood of offspring with the genotype bbll
bl
bell
bbu
bbll
bbli
bbl
bb
bbli
bbm
boll
boli
boli
boli
38
bol
bu
1/16
2/16
3/16
4/16

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.

Food contains a sugar called ( ), which is broken down in a process called cellular ( ). this process uses ( ) to break down food molecules and provide energy for cells. fill in the parentheses

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.