Sugar and glucose is the main source of energy
Answer:
the nucleus at the central part of the cheek cell contains DNA. When a drop of methylene blue is introduced, the nucleus is stained, which makes it stand out and be clearly seen under the microscope. And methylene blue stains negatively charged molecules in the cell, including DNA and RNA. This dye is toxic when ingested and it causes irritation when in contact with the skin and eyes. The cells seen are squamous epithelial cells from the outer epithelial layer of the mouth.
Explanation:
''The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record. This event is sometimes called the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears. It was once thought that Cambrian rocks contained the first and oldest fossil animals, but these are now found in the earlier Ediacaran (Vendian) strata.''
Answer:
50% chance for each type.
Explanation:
The Law of dominance states that a trait is represented by 2 contrasting factors of a gene in a heterozygous individual while the homozygous individual carries 2 copies of the same factors. Thus, the genotype of the heterozygous rabbit will be Bb and the homozygous recessive rabbit will be BB. The Law of segregation states that the 2 factors for a trait, present together in a heterozygous individual (Bb), do not get mixed and are delivered and separated by singly during the process of gametogenesis.
Thus, the heterozygous individual will produce 2 types of gametes: 50% gametes with “B” and 50% with “b”. The homozygous recessive individual will make all gametes with the B allele only. Fertilization of gamete with B allele from a recessive parent with that carrying B allele from the heterozygous parent will produce homozygous recessive progeny (BB) not “Bb”.