All living organisms use DNA as their genetic material and share essentially the same genetic code. Which of the following gives the best scientific explanation for these shared features? All living species independently evolved the same genetic code DNA and the genetic code were already present in the last common ancestor of all modern-day organisms DNA sequences never change, so using DNA as the genetic material ensures that organisms have no genetic variation DNA is the only biological molecule that can carry information
Added by Jeffrey B.
Close
Step 1
Step 1: The genetic code is a universal three-letter code that codes for proteins in all living organisms. Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 70 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Which statement best explains how the genetic code is universal? * The shape of a DNA molecule is the same in different species. A DNA sequence codes for the same proteins in different species. The nucleotide ratios in the DNA molecule are different between species. DNA sequences are unique for each species.
Sri K.
Molecular evidence is increasingly used today to establish relationships among organisms because A. some genes from closely related organisms have no similarities with each other B. the more similar the DNA sequences, the more closely related two organisms are to each other C. DNA base sequences of genes shared by different organisms are absolutely identical D. different species do not share genes for similar or identical proteins E. all of the above are true.
Madhur L.
Questions $15-19$ Choose from the terms below. (A) Gel electrophoresis (B) Restriction enzymes (C) Polymerase chain reaction (D) Recombinant DNA (E) RNA processing Taking DNA from two sources and combining them into one cell
HEREDITY
Molecular Genetics
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD