Semester 2 Final Practice Test

1. Variations can result in ___. Choose all that apply.

a. Mutationsb. Speciationc. Extinctiond. Geographic isolatione. Competition

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.

3. The mRNA nucleotide sequence is determined by the ___ nucleotide sequence.

a. tRNAb. rRNAc. amino acidd. DNAe. nucleic acid

4. Which of the following BEST describes tRNA charging?

a. tRNA carries amino acid to ribosomeb. tRNA moves out of the nucleusc. tRNA attaches to its anticodond. tRNA attaches to its amino acide. tRNA attaches to its codon

5. The nucleus is made during ___.

a. Anaphaseb. Cytokinesisc. Interphased. Metaphasee. Prophasef. telophase

6. To remove DNA from an organism’s genome, which process is used?

a. Gene therapyb. Restriction digestc. Ligationd. DNA fingerprintinge. Transformation

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.

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 daughtersb. half his daughtersc. all his sonsd. none of his children

9. All of these describe the phenotype EXCEPT for ___.

a. allelesb. heightc. adaptationsd. traitse. variations

10. Which of these does NOT describe a diploid cell? Choose all that apply.

a. Gametesb. Somatic cellsc. Results from mitosisd. Found at the start of meiosise. 1nf. 2n

11. Which hormones stimulate the release of estrogen & progesterone? Choose all that apply.

a. FSHb. GnRHc. HCGd. LHe. oxytocin

12. Which of these is LEAST likely to lead to speciation?

a. Adaptationb. Evolutionc. Gene flowd. Reproductive isolation

13. Protein is found in all of the following EXCEPT for ___.

a. Cholesterolb. Enzymesc. Keratind. myosin

14. Each strand of a double-stranded chromosome is known as ___.

a. A centromereb. A daughterc. Homologousd. A chromatid

15. Chromosomes that code for the same genes but are not identical are called ___.

a. Chromatidsb. Chromatinc. Daughtersd. Homologouse. Sisters

16. Which of the following is NOT a product of meiosis?

a. 1n cellsb. Gametesc. Haploid cellsd. Somatic cells

17. Which of the following will result in sticky ends?

a. Cloningb. Restriction digestc. Gel electrophoresisd. Transformatione. Ligation

18. Which chromosomes are NOT considered homologous?

a. Autosomalb. X chromosomesc. X & Y chromosomesd. None of these

19. Both the ovaries & testes are types of ___.

a. Gonadsb. Gametesc. Travel tubesd. Glands

20. If you don’t notice your skin stretch, which sensory receptors aren’t working?

a. Pain receptorsb. Chemoreceptorsc. Thermoreceptorsd. Photoreceptors e. Mechanoreceptors