Answer:
Option D, a test for the presence of cells that contain DNA
Explanation:
As we know all living organisms are made up of cells and DNA is the basic genetic material that codes for protein and traits with an organism. If even a single cell with DNA is detected on the extraterrestrial planet then it will be clear that it has life on it or the environmental conditions are favorable to support life. Cells are microscopic and hence can be seen through microscope which can be installed easily on a probe.
Hence, option D is correct
Answer:
the answer is
b. it carries blood towards the heart
Answer:
Dihybrid
Explanation:
A dihybrid cross explores the interaction of two traits in affecting the genotype of the offsping
The answer is A.the site on an enzyme where the substrate binds
