Hi!
Question - How do mutations lead to variation
Answer - B. By producing changes in the genetic code
Why - "In which can create entirely new alleles in a population"
In fetal circulation, the ductus venosus bypasses the liver and the ductus arteriousus bypasses the lungs. Ductus arteriosus also called ductus botalli is a blood vessel connecting the main pulmonary artery to the proximal ascending aorta. It does allow most of the blood from right ventricle to bypass the fetus's fluid-filled non-functioning lungs. Ductus venosus on the hand allows oxygenated blood from the placenta to bypass the liver.
Preserves animal tracks are called trace.
Explanation:
Phototropism- a response to <u>light stimulus</u> that directs the stem to grow toward the light and roots to grow away from it.
ii. Gravitropism- Stems and leaves grow away from the force of <u>gravity</u> while roots grow toward it.
iii.Thigmotropism - growth in response to <u>touch stimulus.</u> The side of the stem in contact with the object grows slower than the side not in contact. This causes the vine to twist around the object.
Answer:
genetic engineering is the process of using recombinant DNA technology to alter the genetic makeup of an organism. genetic engineering involves the direct manipulation of one or more genes.
Explanation:
ggene therapy seeks to alter genes to correct genetic defects and thus prevent or cure genetic diseases. genetic engineering aims to modify the genes to enhance the capabilities of the organism beyond what is normal.
