Answer:
1. No, the process independent assortment randomly segregate the maternal and paternal chromosomes to different gametes.
2. No, the process of crossing over generates recombinant chromatids.
Explanation:
1. During anaphase-I of meiosis-I, the random segregation of maternal and paternal chromosomes to the opposite poles of the cell occurs. This process randomly distributes the homologous chromosomes of a pair to the gametes. Therefore, the progeny obtains some new combinations of maternal and paternal chromosomes that were not present in their parents. Further, the process of random fusion of these gametes adds more new combinations of chromosomes.
2. The process of crossing over generates the recombinant chromatids during prophase-I. This produces some new allele combinations on the chromosomes which were not present in the parental chromosomes.
Answer:
4.Only DNA serves as the master copy of an organism's genetic code which must be replicated by unzipping and base pairing before the cell divides.
The products are C6H12o6 and 602
Answer:
The Archean Eon marked a time when Earth’s climate began to stabilize.
Earth cooled down from its molten state. It eventually could support oceans. Tectonic activity built continents.
In the Archean Eon, oxygen filled the atmosphere and most of the world’s iron ore was deposited.
Because the Earth’s conditions stabilized, eukaryotic and multicellular life could finally emerge in the Proterozoic Eon.
Explanation:
