Answer: Point mutation is easily reversible, thus non-lethal
Explanation:
Point mutation is caused by exchange of a single nucleotide for another. These change is called
1) Transition (when a purine base substitute another purine base, or pyrimidine bases substitute each other)
2) Transversion (when a purine base substitute a pyrimidine base).
However, note that a point mutation can be easily reversed by another point mutation; so, the claim that a nucleotide difference in the Hsr12 gene caused the human disease is inaccurate
Lumbar region refers to the lower back or lower spine.
important muscles of the lumbar spines are:
1) multifidus - stabilizes and rotates the lumbar spine
2) longissimus
3) spinalis
lower back pain are caused by improper posture, compression fracture, muscle injuries, fractured vertebrae, spinal stenosis, osteoarthritis, herniated disc.
Answer:
1. Sexual Reproduction
2. Genetic variations
Explanation:
Human reproduces through sexual reproduction. Sexual reproduction is the process of production of new progeny by the formation of male and female gametes (sperms and egg respectively) and fusion of gametes. During gamete formation, crossing over adds new gene combinations to the gametes. The genetic variations make the progeny of sexual reproduction different from each other and from the parents.
Answer;
Body composition is best described as the ratio of fat to other tissue in a body.
Explanation;
Body composition is the portion of fat and fat-free mass in the body. Lower percentage of body fat and a higher percentage of fat-free mass (muscles, bones and organs) indicates a healthy body composition. Body composition is important as it is used to asses the health and fitness level. The fat-free mass includes the bone, water, muscle, organs and tissues, these tissues are metabolically active, burning calories for energy while body fat is not.
Answer:
Bottle Biology is a classroom-tested approach to hands-on biology which allows students on all levels to become engaged in the actual process and activity of doing science: Asking questions, creating experiments, testing hypotheses and generating "answers."
Explanation:
♡ <em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>♡</em>