1. Semester 2 Final Practice Test

2. 1. Variations can result in ___. Choose all that apply. a.Mutations b.Speciation c.Extinction d.Geographic isolation e.Competition

3. 2. A requirement for evolution to happen is to have a.variation between individuals. b.variation between populations. c.variation between species. d.variation between kingdoms.

4. 3. The mRNA nucleotide sequence is determined by the ___ nucleotide sequence. a.tRNA b.rRNA c.amino acid d.DNA e.nucleic acid

5. 4. Which of the following BEST describes tRNA charging? a.tRNA carries amino acid to ribosome b.tRNA moves out of the nucleus c.tRNA attaches to its anticodon d.tRNA attaches to its amino acid e.tRNA attaches to its codon

6. 5. The nucleus is made during ___. a.Anaphase b.Cytokinesis c.Interphase d.Metaphase e.Prophase f.telophase

7. 6. To remove DNA from an organism’s genome, which process is used? a.Gene therapy b.Restriction digest c.Ligation d.DNA fingerprinting e.Transformation

8. 7. The cell is considered diploid when a.the chromatids are doubled. b.meiosis is completed. c.it has homologous chromosomes. d.it has daughter chromosomes. e.it can divide four times.

9. 8. A recessive allele is found on the X chromosome. Fathers will pass the condition to which of his children (assume his wife is not a carrier)? a.all his daughters b.half his daughters c.all his sons d.none of his children

10. 9. All of these describe the phenotype EXCEPT for ___. a.alleles b.height c.adaptations d.traits e.variations

11. 10. Which of these does NOT describe a diploid cell? Choose all that apply. a.Gametes b.Somatic cells c.Results from mitosis d.Found at the start of meiosis e.1n f.2n

12. 11. Which hormones stimulate the release of estrogen & progesterone? Choose all that apply. a.FSH b.GnRH c.HCG d.LH e.oxytocin

13. 12. Which of these is LEAST likely to lead to speciation? a.Adaptation b.Evolution c.Gene flow d.Reproductive isolation

14. 13. Protein is found in all of the following EXCEPT for ___. a.Cholesterol b.Enzymes c.Keratin d.myosin

15. 14. Each strand of a double-stranded chromosome is known as ___. a.A centromere b.A daughter c.Homologous d.A chromatid

16. 15. Chromosomes that code for the same genes but are not identical are called ___. a.Chromatids b.Chromatin c.Daughters d.Homologous e.Sisters

17. 16. Which of the following is NOT a product of meiosis? a.1n cells b.Gametes c.Haploid cells d.Somatic cells

18. 17. Which of the following will result in sticky ends? a.Cloning b.Restriction digest c.Gel electrophoresis d.Transformation e.Ligation

19. 18. Which chromosomes are NOT considered homologous? a.Autosomal b.X chromosomes c.X & Y chromosomes d.None of these

20. 19. Both the ovaries & testes are types of ___. a.Gonads b.Gametes c.Travel tubes d.Glands

21. 20. If you don’t notice your skin stretch, which sensory receptors aren’t working? a.Pain receptors b.Chemoreceptors c.Thermoreceptors d.Photoreceptors e.Mechanoreceptors