A gene accumulates one mutation every 100 years. If one species splits into two today, how many differences will
exist in that gene between the two in 500 years?
a. 2
b. 5
c. 10
d. 100
e. 500
ANSWER: c
You might also like to view...
Glucose is broken down through cellular respiration, which involves a large number of chemical reactions. At the end of the cellular respiration process, a large number of ATP molecules are generated, but yet, not all of the possible energy that is contained in a molecule of glucose can be harnessed through these chemical reactions to generate ATP. In other words, during cellular respiration, not all of the energy that is contained in a molecule of glucose is converted into the energy stored in ATP. What happens to the remaining energy?
A. It is destroyed B. It is used to drive exergonic reactions C. It is donated to molecules in the cellular respiration process to reduce them D. It is lost as heat
The region of DNA sequences before the start of a gene is often called the promoter. One type of promoter is called the TATA box. Many species' promoters are TATA boxes or a variation of the TATA box
Many species' promoters are TATA boxes or a variation of the TATA box. DNA sequences that are similar in different organisms are called ____ sequences. Fill in the blank with the appropriate word.
Meiosis in females is completed
A. at conception. D. at fertilization. B. at ovulation. E. prior to conception. C. at puberty.
The primary source of energy for hydrothermal vent communities is from
A) the heat of the water emerging from the vents. B) oxidation of photosynthetic bacteria in the vent water. C) sulfur bacteria. D) reduction of carbon dioxide in the vent water.