Answer:
Option A, C and D
Explanation:
Mutations can be beneficial and call also not be beneficial. Examples of beneficial mutation includes laptop tolerance, HIV resistance etc. This mutations occur as changes in the nucleic acid sequences (DNA; which is made up of the four nitrogenous bases, deoxy/ribose sugar and phosphate group. Changes in these bases can bring about mutations that are beneficial) of organism and also it depends on where in the genetic code they occur. Beneficiary mutations can bring about increased fitness of the organisms involved.
Answer The first practical realisation of the metric system came in 1799, during the French Revolution, when the existing system of measures
Explanation:
<span>An aerobic reaction is one that requires oxygen. </span>Aerobic respiration is the way toward creating cell vitality including oxygen. Cells separate nourishment in the mitochondria in a long, multistep process that produces around 36 ATP. The initial phase in is glycolysis, the second is the citrus extract cycle and the third is the electron transport framework.
Answer:
Option (1), (3) and (5).
Explanation:
Positive feedback mechanism also exist in the environment that increases the causative effect of the environment. The environment can change the temperature, precipitation and other climatic conditions of the area.
The lack of moisture in Sahara desert and deforestation can cause the trees extinction. The temperature can be increased by the green house gases as the warm atmosphere causes evaporation. The snow gets melted due to increase in temperature and the ground becomes more darker.
Thus, the correct answer is option (1), (3) and (5).
Answer:
a) genetic drift - yes
b) Natural selection - yes
c) Gene flow - yes
d) Mutation - yes
Explanation:
factor that alter the allele frequencies are
a) genetic drift - yes
b) Natural selection - yes
c) Gene flow - yes
d) Mutation - yes
Genetic drift - Alter occur due to sampling error or selecting error. in this some error occur while deciding for the allele for the next generation.
Natural selection - it is due to large number of one type of allele in the population
Gene flow - it alter because of migration of allele among the populations.
Mutation - it is strong for introduction of new alleles in the population
