Group of genes that are regulated together
Genes usually have related functions
E. coli <span>have cluster of 3 genes that must be turned on before it can use lactose as food</span>
Answer: Electromagnetic waves
Explanation: The main property of the waves is the way how they propagate or travel in medium The waves which can travel without a medium is said to travel in vacuum or air.
Answer:
Meiosis results in the production of gametes (sex cells)
Geothermal energy = Eco-friendly
Cut down trees = not eco-friendly
Biomass instead of coal = eco-friendly
Turn lights on during the day = not eco-friendly
Carpool = eco-friendly
Compost = eco-friendly
The controlled experiments are performed by the scientists, when they want to study the changes in the sample on changing a single variable. So, the correct answer is option (b).
In case, all variables are kept same, no changes would be observed in the experiment sample. A controlled experiment can be performed on living thing as well as non living. But, controlled experiment cannot be performed on the things which are influenced by a lot of variables, as they cannot create realistic results. So, the option (a), (c), and (d) are incorrect.
