9

41) Which of the classes of RNA molecules carries the genetic information as it is  
      needed for the construction of a protein? 
          A) Ribosomal RNA 
 

B) Transfer RNA 

C) Messenger RNA 

 D) 

Primary 

RNA 

E) Secondary RNA 

 
42) Which the following occurs in the nucleus in a eukaryotic cell? 
 

A) Transcription only 

B) Assembly of amino acids into protein only 

C) Replication of genetic material only 

D) Both transcription and replication of genetic material 

E) Translation only 

 
43) What are alleles? 
 

A) Genes for different traits, such as hair color or eye color 
B) Alternative forms of a gene for a single trait, such as blue eyes or brown  

eyes 

C) The location of genes on the chromosome 

D) Recessive forms of the gene 

E) Dominant forms of the gene 

 
44) An individual who is 

a carrier

 for a sex-linked trait, such as hemophilia: 

A) Is always male 

B) Is homozygous for the condition 

C) Shows the dominant phenotype 

D) Cannot pass the gene to his or her daughters 

E) Is never a female 

 
45) An individual with a dominant phenotype is crossed with an individual with a  
       recessive phenotype and 4 of their 9 offspring show the recessive phenotype. 
       What is the genotype of the parent with the dominant phenotype? 
          A) Aa 
 B) 

AA 

 C) 

aa 

 D) 

AAAa 

 E) 

Aaaa 

 
46) Which of the following is NOT true according to Mendel’s law of segregation? 
 

A) Each individual contains two factors for each trait 

B) One factor must be dominant and one must be recessive  

C) Factors separate from each other during the formation of gametes 

D) Each gamete contains one copy of each factor 

E) Fertilization restores the two copies of each factor