Awarm front often brings a. cirrus clouds b. fair conditions c. cool weather d. steady rain

Which sentence best expresses the differing opinions of these two book reviews?

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 probability of producing a normal child by two parents who are carriers for an autosomal recessive disorder is