Answer:B
Explanation:
The last pair are sex chromosomes. Different pair is XY which is a male chromosome. Same pair is XX which is Female
The advantages and limitations of obtaining informant report data for the courage trait are;
Advantages include;
Large amount of information
Definitional truth based on the observed acts of courage.
Limitations on the other hand include;
Very little behavioral data,
Error; much more likely to remember acts of courage than non-courageous acts.
Restriction enzymes are DNA cutting enzymes found within bacteria. They can cut the DNA molecule.
Answer:
Without an oxygen atmosphere very few things could live on the early Earth. Anaerobic bacteria were probably the first living things on Earth. The early Earth had no oceans and was frequently hit with meteorites and asteroids.
Explanation:
