Hi!
The correct option is B. Which genes are active.
Embryonic differentiation is a developmental process by which embryonic cells give rise to specialized cells and a diverse range of tissue structures. All of this unique cells essentially rise from a type of cells that are known as pluripotent cells.
But how do these pluripotent embryonic stem cells know which cells to differentiate into? This is where genes come into play. The cell has an inherent signalling ability that determines which gene is to be active and expressed. These specifically activated genes then translate into proteins for which it is specific, giving each cell, tissue and organ its particular identity.
Hope this helps!
Mammals. I am no scientist, but I think that they are closer to mammals due to the fact that they are warm-blooded, and they raise their young. Reptiles are cold blooded and usually leave their offspring to fend for themselves.
Answer:
The Sun
Explanation:
The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs.
Answer:
No
Explanation:
Replication happens at a much faster rate in prokaryotes than in eukaryotes.
Answer:
(D) Enzymes can function only within living cells.
Explanation:
<em>Enzymes are biological molecules that are proteinous in nature and speed up the rate of biological reactions.</em>
Option A is true because enzymes are not used up or changed when they are used to catalyze reactions
Option B is true. Enzymes are very specific with regards to the reactions they take part in.
Option C is true. Some enzymes contain non-protein component that assist them in their functioning. These non-protein components are called co-factors.
Option E is true. Because enzymes are proteinous in nature, they can be destroyed/denatured by high temperatures.
<em>The only untrue option is D. Some enzymes can function outside living cells. For example, the enzymes involved in digestion can function not just within living cells but also outside it. The functions of some of the digestive enzymes can be demonstrated in the laboratory.</em>
The correct option is D.
