Question

1.) What are the bases that would make up the complementary strand for the DNA sequence CGATTAGTTTACC?

2.) A relative has been to the doctor and comes back with the good news that the tumor they discovered in their abdomen was a harmless, non-cancerous one. They know this because the doctor said the tumor was_________
a.   Carcinogenic
b.   Metastatic
c.   Benign
d.   Malignant
e.   Ectopic

Answer 1

1.

• Given DNA sequence is CGATTAGTTTACC.
• The bases that would make up the complementary strand for the given DNA sequence are            
• C --------- G, G ----- C , A -----T , T------A,T-----A, A------T, G-----C, T-----A,T-----A,T----A, A-----T, C---- G,C------G.
• Complementary DNA is a double stranded DNA synthesized from single stranded RNA and template in the reaction is catalyzed by enzyme reverse transcriptase.
• cDNA is naturally produced by the retroviruses.
• Complementary DNA is often used in genetic clones or genetic probe or used in the creation of cDNA library.

2.

• C.Benign tumour.It is a non cancerous and harmless tumour.
• Benign tumour is a mass of cells that has a ability to invade neighbouring tissue or metastasize.
• They have a slower growth and the examples are moles, uterine fibroids.
• But some of the benign tumors may cause to become malignant by the tumour progression.