During the Quaternary Glaciation, ice sheets expanded, notably from out of Antarctica and Greenland.
The answer is D. -Antarctica
In the presence of lactose, the gene for beta-galactosidase is turned on by induction. The RNA polymerase binds to the promoter, in the presence of lactose. Lactose binds to repressor leading to structural changes so that it does not bind to the promoter. This leads to the production of beta-galactosidase which breaks the bond between glucose and galactose, for utilization of lactose.
There is no diagram here, so I cannot answer.
Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids
<h3>What are Eukaryotic cells ?</h3>
Eukaryotes are organisms having cells that contain a nuclear envelope around their nucleus. They are a member of the Eukaryota class of organisms. One of the three domains of life is the eukaryotic domain; the other two are the bacterial and archaeal domains.
- The nuclear membrane encloses the nucleus in eukaryotic cells. the mitochondria of the cell. In a eukaryotic cell, the locomotory organs are flagella and cilia. The outermost layer of eukaryotic cells is called a cell wall. The process of mitosis is how cells divide.
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Answer:
Explanation:
Haploid algal cells (<em>containing only one copy of their DNA</em>) can fuse with other haploid cells to form diploid zygotes. When filamentous algae do this, they form bridges between cells, and leave empty cell walls behind that can be easily distinguished under the light microscope.
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