Biology Forums - Study Force

1. The length of the DNA is proportional to the size of the cell, short enough to fit within even the smallest cell. True or False
I have true

2. In DNA adenine pairs with thymine. True or False. I have True

3. Mistakes in the base sequences of the growing DNA chain during replication either are corrected or become mutations. True or False. I have True

4. The sum total of an organisms structural genes constitutes its
    a. appearance
    b. phenotype
    c. function
    d. genotype
    e. none of the above

5. Transcription in the process of copying the DNA code to a strand of
    a. DNA
    b. messenger RNA
    c. transfer RNA
    d. ribosomal RNA
    e. none of the above

6. Translation occurs in the cytoplasm. True of False. I have true

7. Antibiotics inhibit the growth of infectious agents by affecting
    a. transcription
    b.  translation
    c. replication
    d. a and b
    e. a and c

8. Many chemical mutagens are also carcinogens. True or False. I have True

9. Mutagens are permanent and inheritable. True or False. I have True

10. The properties of bacteria that influence recombination are:
     a. genetic material found in one chromosome
     b. possession of extrachromosomal DNA
     c. ability to interchange genes without disruption
     d. a and b
     e. b and c

11. The two strands of DNA are held together by hydrogen bonds. True or False. I have True

12.  The semiconservative replication of DNA means that:
     a. DNA is a double helix
     b. the two new DNA molecules will be different from the original DNA molecule
     c. one of the new DNA molecules will contain two new strands of DNA, while the other contains both old strands
     d. the two new molecules of DNA will contain uracil instead of thymine
     e. the two new molecules of DNA will each have one old strand and one new strand, and be identical to the original DNA      molecule

13. A gene is considered to code for a protein. True or false. I have true

14. Which of these is not part of DNA?
    a. deoxyribose
    b. phosphate
    c. thymine
    d. cytosine
    e. uracil
I have e. Uracil

15. In RNA, adenine can form a base pair with?
    a. thymine
    b. guanine
    c. uracil
    d. cytosine
    e. adenine
I have c. uracil

16. The anticodon for mRNA UGC is
    a. AGC
    b. ACG
    c. TGC
    d. TCG
    e. UGC
I have b. ACG

17. The sugar in DNA is deoxyribose. True or False. I have True

18. If a protein is coded for 450 bases, how many amino acids make up the protein?
    a. 900
    b. 450
    c. 300
    d. 150
    e. 100
I have d. 150

19. The best definition of a genome is
    a. inheritance
    b. the sum total of all the genetic material in the cell
    c. the site in the chromosome providing information for a certain cell function
    d. the extrachromosomal DNA
    e. a trait
I have e. a trait

20. The codon for a DNA section with ACG is?
    a. ACG
    b. GCA
    c. UCG
    d. TGC
    e. UGC

False. DNA length is independent of cell size. Regardless of the cell, the same DNA is found in different cells.

True.

They are more often then not corrected. So, true.

D

B

True, in eukaroytes, yes.

This is true.

C

It's B actually ;)

11. The two strands of DNA are held together by hydrogen bonds. True or False.

TRUE

14-17 you are correct as well  ;D

I think we're done :)

nice teamwork   :-X

You are all great!! Thank you all so much!!   ;D

ooopppssss, we missed 7,10,12, and 18!!