An ecosystem is what occurs in the natural community and consists of the physical and chemical factors that made up its abiotic environment. Examples include: a pond, a forest, a grassland, a prairie
Answer:
1. 5 pg of DNA.
2. 10 pg of DNA.
Explanation:
The process of meiosis results in the production of the four haploid daughter cells and is involved in the formation of sexual gametes. The sperm cells produced as a result of the meiosis are haploid in their ploidy and therefore contains only "C" amount of DNA.
<u>1. During interphase
</u>
The sperms are formed from the diploid spermatocytes which contain 2C amount of DNA. During the cell cycle before the M phase, cell replication takes place in the S phase. The synthesis phase doubles the amount of DNA and forms 2C to 4C.
Therefore before the S phase or in G1 phase, the DNA amount will be 2C or 2 x 2.5= 5 pg of DNA.
<u>2. At metaphase
</u>
After S phase, the amount of DNA increases to 4C which gets distributed during the anaphase that is after the metaphase. Therefore, the amount of DNA during metaphase will be 4C or 4 x 2.5 = 10 pg.
Viral infection involves a large number of protein protein interactions (PPls) between virus and its host. These interactions rage from the initial binding of viral coat proteins to host membrane receptor to the hijacking the host transcription machinery by viral proteins.
Soil
A carbon sink acts as a reservoir for carbon, removing carbon dioxide from the atmosphere, for almost an indefinite period of time. Preserving carbon sinks is significant in tackling climate change.
Explanation:
The soil has more carbon that atmosphere and life on earth combined. It is approximated that soil holds approximately 2,500 billion tonnes of carbon while the atmosphere holds approximately 800 billion tones. Plat and animal life combined hold about 560 billion tonnes of carbon. The carbon in the soil comes mainly from dead organic matter and microbes in the soil.
Learn More:
For more on carbon sink check out:
brainly.com/question/7298584
#LearnWithBrainly
The correct option is B.
Gene flow refers to the movement of genes from one population to another population. The movement of genes in and out of a particular population usually result in significant changes in the gene frequencies of the population members that are carrying specific variant of a particular genes. Thus leading to increase in the amount of genetic variations in that population.