1.A DNA segment has base order AGC TTA TCG. Which copy exhibits a frameshift mutation through deletion?
D. AGA TTT CG
2.A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution mutation?
D.CCA TAA CT
3.Which type of mutation causes cystic fibrosis?
D. deletion
4.Which statement about chromosomes is true?
C.Chromosomes contain DNA
5.Which modification affects an organism’s expressed characteristics while leaving its DNA sequence unchanged?
B.Epigenetic change
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100%! Though, the answer to number one is "AGC TTT CG" not "AGA TTT CG".
Mr. is right I got 100%
Thanks Man!
Thanks. This is 100% correct
Thank you Mr.! 100% For number one it's AGC TTT CG not AGA TTT CG. But still got it correct. Thank you!
they changed it now for question 5
If a cell has two copies of each chromosome, which type of cell is it?
answer is: A diploid cell