Answer:
With respect to genetic information, it is true that a gene is a section of DNA and is found on a chromosome in the cell's nucleus.
Explanation:
DNA contains all the genetic information that determines the morphological and functional characteristics of living beings.
The structure of DNA contains specific sequences of 4 nitrogenous bases, whose extension constitutes the coded genetic information. A chromosome is formed by a DNA molecule, and the<u> </u><u>genes</u><u> contained in the chromosome locus are sequences of nucleotides coming from fragments of that same DNA</u>.
All the genetic information —DNA, chromosomes and genes— is located in the cell nucleus.
<span>organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere. These have been arranged from the smallest to the largest. The biosphere is the largest level of organization while the organelle is the smallest. However, the basic form of life begins with the cell. Many cells together form a tissue and several tissue form an organ.
</span>
<span />
Answer:
Microevolution refers to evolution at or below the species level.
Explanation:
- If the change occurs in the short period span of time within the specific species then this type of change is refereed to as the micro evolution.
- Micro evolution is occurred in between small group of animals or species.
- If the evolution is expanded to community or large population it is not considered as a microevolution.
- Microevolution may be caused due to mutation, selection, gene flow and genetic drift.
Explanation:
Yams are produced through slips, which have been generated again from sprouts of mature yams, rather than seeds, as most other crops are. Split a yam in part and place one half in a bowl of cool water to develop sprouts.
Answer:
availability of resources.
Explanation:
Availability of resources is abiotic factor which is responsible for the decrease in population in 1990 because when the population reaches its carrying capacity so the organisms compete with each other and due to limited resources such as food etc the decrease occurs in population. Infection is also occurs when there is high population due to which death occurs and population of organism decreases.
