Which of the following best describes the genetic material a person receives from his or her father?
A.) 22 pairs of homologous chromosomes and an X and Y chromosome
B.) 22 haploid cells and an X or Y chromosome
C.) 23 diploid cells and an X and Y chromosome
D.) 22 autosomes and an X or Y chromosome
Answer: D.) 22 autosomes and an X or Y chromosome
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When amino acids are broken down for energy, ammonia is created, which is converted into _____ and excreted in urine.
a. ammonium b. uranium c. urea d. phosphatase
What is the name of the process for removing amniotic fluid from a pregnant mother to obtain fetal cells for genetic testing?
A) amniocentesis B) polymerase chain reaction C) preimplantation genetic diagnosis D) in vitro fertilization
Which of the following is one of the assumptions of the Hardy-Weinberg law?
A) The population is small. B) Non-random mating occurs within the population. C) Mutations appear in the gene pool at high frequency. D) Migration occurs into or out of the population. E) The ability of all genotypes to survive and reproduce is the same.
A(n) ________ is a diagram in which blocks represent each trophic level
Fill in the blank(s) with correct word