IB Biology 3.1 Quick Quiz

What is the difference between the alleles of a gene?

• Their position on the chromosome
• Their amino acid sequence
• Their pentose sugars
• Their base sequence

What is the set of alleles that an individual possesses?

• Gene
• Genotype
• Genome
• Genus

A human cell has between 20 000 and 25 000 genes whereas an E. coli cell has approximately 4000genes. Which of the following statements is true?
A. .B. .C. D. 

• The human genome is larger than the E. coli genome
• There are more genes on each human chromosome than on the E. coli chromosome
• The human cell and the E. coli cell produce approximately the same variety of proteins.
• The DNA in both organisms is associated with histones (proteins)

Which of the following changes in DNA is likely to have the greatest effect on the resulting peptide? 

•  a “G” is inserted at the end of a gene 
• in a strand of DNA, one T is changed to a C
• in a strand of DNA, one C is changed to a T
• a “G” is inserted at the beginning of a gene

Tags

NGSS.HS-LS3-2

A strand of DNA with the sequence AAC AAG CCC undergoes a mutation,  and the first A is changed to a C. How will this mutation affect the amino acid sequence? A.    B.  One amino acids will change. C.  .  D.  

•  Two amino acid will change. 
• One amino acids will change
• The amino acids will remain the same
• All of the amino acids will change

Tags

NGSS.HS-LS3-2

NGSS.HS-LS1-1