Which of the following represents the first offspring of the parental generation? Question 9 options:

P

F1

F2

F3

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

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different

What is the most important inorganic material for livings things? ! due tomorrow!