b. Allele IA and IB are codominant, and allele i is recessive.
c. Allele i is dominant over alleles IA and IB.
D. Three alleles code for blood types and three phenotypes are possible.
‘How are the three genes related???
B. enhances leaf growth in plants
C. neutralizes lakes, streams, and oceans
D. damages statues, buildings, and other structures
Answer: a. low precipitation
Precipitation is the amount of rainfall an area or a biome receives. It is the chief source of water for water bodies available for human use like lakes, rivers, ponds, groundwater. The amount of rainfall depends upon the vegetation growing in an area. The trees and plants transports water through the process of transpiration that adds up to the water cycle. Lack of vegetation can affect normal water cycle and can limit the occurrence and amount of rainfall. The lack of proper rainfall will limit the volume of water in water bodies and hence, will limit the water supply for use.
The leading cause of limited water supplies is overuse. Therefore, the correct option is B.
An important issue in water scarcity is the overuse of water resources. Human activities, including domestic water use, industry, and agriculture, can use up more water than is permanently available in a given location. With population growth and economic expansion, the demand for water increases, putting pressure on the already available water resources.
Limiting use is one way of managing water resources, although it is not the main cause of resource depletion. Government management and regulation of water resources are important, but they are not the root cause of scarce water supplies.
Therefore, the correct option is B.
Learn more about Water scarcity, here:
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-life logic
-house logistics
-environmental knowledge
Answer:
house logistics
Explanation:
B) Two sister chromatids exchange identical pieces of DNA.
C) Specific proteins break the two strands and re-join them with their homologs.
D) Each of the four DNA strands of a tetrad is broken and the pieces are mixed.
E) Maternal alleles are "corrected" to be like paternal alleles and vice versa.
Homologous chromosomes crossover during meiosis when specific proteins break two DNA strands at corresponding points and re-join them with their homologs, resulting in an exchange of genetic material.
When homologous chromosomes participate in a process called crossover during meiosis, option C) takes place. Specific proteins cause the two DNA strands to break at corresponding points. These proteins then re-join them with their homologs, switching certain sections of DNA between the two chromosomes. This process is a fundamental feature of sexual reproduction and contributes to genetic diversity because the chromatids that undergo exchange, although from homologous chromosomes, are not identical.
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