2. 2. A couple has 6 children, all girls. If the mother gives birth to a seventh child, hat is the probability that seventh child will be a girl? a. 6/7
b. 1/128 c. 1⁄2
d. 1

3. A man who has a Y-linked recessive disease will pass the disease to
a. all of his daughter
b. All of his son
c. Haf of his sons
d. Half of his daughter

4. Yellow flower color is dominant over blue. A plant with yellow flower was crossed with a blue flowered plant 3 times. All of the offspring from first and second cross were yellow, while on the third cross one of the offspring was blue flowered. Determine the genotype of the parents (both)

Two true-breeding pea plants were crossed. one parent is round, terminal, violet, constricted, while the other expresses the respective contrasting phenotypes of wrinkled, axial, white, full. the four pairs of contrasting traits are controlled by four genes, each located on a separate chromosome. in the f1 only round, axial, violet, and full were expressed. in the f2, all possible combinations of these traits were expressed in ratios consistent with mendelian inheritance. (a) what conclusion about the inheritance of the traits can be drawn based on the f1 results? (b) in the f2 results, which phenotype appeared most frequently? what mathematical expression predicts the probability of occurrence of this phenotype? (c) which f2 phenotype is expected to occur least frequently? what mathematical expression predicts this probability? (d) in the f2 generation, how often is either of the p1 phenotypes likely to occur? express your answer as a fraction (example: 3/16).

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity