Answer: Coal is a nonrenewable resource.
Answer:
The correct answer is option d.
Explanation:
Based on the given question, the genotype of the male parent is aa, the genotype of the female parent is Aa, and the genotype of the offspring is AAa, showing trisomy characteristics. In the given case, the existence of two A chromosomes shows that the chromosomes non-disjunction at the time of gametogenesis have taken place in the female as she is the only one possessing A allele. Hence, it can be concluded that the disjunction is maternal in characteristic.
The duplication of chromosomes takes place at the time of the S-phase of meiosis. Thus, after going through S-phase, the karyotype of the cell will be AAaa (maternal gametogenesis), this set of the chromosome is termed as homologous pair, and the pair of AA or aa is termed as sister chromatids.
The meiotic disjunction takes place in two phases. First, in meiosis I disjunction, in this separation of homologous chromosomes takes place, that is, the maternal cell AAaa get differentiated into aa and AA daughter cells. Secondly, in meiosis II disjunction, the separation of sister chromatids takes place into two independent chromosomes, that is, the formation of two cells each comprising chromosome A from the AA cell and the formation of two cells each with chromosome a from the aa cell.
Thus, the phenomenon of non-disjunction would have taken place at the time of meiosis II in the case of a female gamete to exhibit two A chromosomes. Hence, the correct answer is option d.
Answer options:
- The nucleus was unable to provide instructions for the other organelles in the cells.
- The mitochondria were unable to undergo cellular respiration and could not produce energy for the cells to function.
- The lysosomes were unable to remove waste from the cells.
- The cell membrane was unable to allow substances to enter and exit the cells.
Answer:
- The mitochondria were unable to undergo cellular respiration and could not produce energy for the cells to function.
Explanation:
Mitochondria are the site of aerobic respiration. This is the process that produces energy in the form of ATP. ATP provides energy for all cellular processes. Without this energy, the cell cannot carry out its functions and will quickly die.
Aerobic respiration requires a good supply of oxygen, which the grasshopper would not have had in a sealed container.
<span>C6H12O6 + 6O2 = 6CO2 + 6H2O + 36 or 38 ATP.
I hope I helped! </span>
Answer:
°Draws attention to the magnitude and importance of threatened biodiversity.
°Identifies and documents those species most in need of conservation action.
°Provides an index of the decline of biodiversity.
Establishes a baseline from which to monitor the future °status of species.
