Both fish seen here are African zebra cichlids. They have two color alleles. The allele for blue coloration is B, while the gene for orange coloration is 0. A fish that has both types of alleles will be marbled orange and blue. This type of fish
is not shown in the picture. Suppose that a male with genotype BO mates with a female that is also BO. What
percentage of each PHENOTYPE will their offspring have?
A)
25% blue; 50% marbled; 25% orange
B)
25% BB; 50% BB, 25% BB
C)
50% blue; 50% orange
D)
50% BB: 50% BO

How does pregnancy begin? a) a placenta forms in the uterus b) a sperm reaches an egg in the fallopian tubec) the blastocyst differentiates into two cell types d) contractions begin in the uterine wallapex

The production of cells during mitosis into specialized function is recombination or differentiation

Use this dichotomous key for insect identification to identify the insect shown. 1. a. insect has one pair of wings. order diptera b. insect has two pairs of wings. go to #2 2. a. front wings thicker in texture than hind wings go to #3. b. front and hind wings are same texture throughout. go to #4 3. a. front wings are short order dermaptera b. front wings cover entire abdomen order coleoptera 4. a. wings with scale on all parts of their area. order lepidoptera b. wings without scales go to #5. 5. a. hind wings smaller than front wings. order ephemeroptera b. front and hind wings nearly equal in size. order odonata the insect pictured is in the order diptera. ephemeroptera. coleoptera. odonata.