14.  The entire genetic code consists of a total of ____ messages. A. 64 B. 4 C. 8 D. 1000s of

42.   You did a test cross and the F1 were 50% hybrid what was the genotype of the unknown parent? A. AA B. Aa C. aa D. AA or Aa

46.  A really big white pig was crossed with a really small black pig. Their offsprings were a very cute shade of silvery grey. This is the result of ______.  A. incomplete dominance B. codominance C. simple dominance D. epistatic dominance

11.  Humans having 30,000 genes can manufacture many times as many mRNAs due to the process of ______. A. polymerization B. splicing C. replication D. mutation

30.  Which would be closest to a copy of the base pattern found in the DNA gene being copied to produce a protein?   A. nRNA B. microRNA C. anticodon D. codon  

32.  The central dogma of biology was proposed in the ____ century. A. 20th B. 19th C. 18th D. 17th

3.   What form of RNA carries the code from DNA to where protein is assembled.  A. transfer B. messenger C. ribosomal D. nuclear

44. A woman named Charlene who is a carrier for a sex-linked disease marries a man sick with a sex-linked disease. What percent of the females will be sick? A. 25% B. 50% C. 75% D. 100%

19.  The enzyme RNA polymerase is used to  ________. A. shorten RNA B. make DNA  C. shorten DNA D. make RNA

1.   Functional messenger RNA contains the nitrogen base _________. A. thioracid B. uracil C. uracid D. thoracil