Answer:
The theory of evolution is supported by instances of direct observation, the existence of homologies and fossils, and certain biogeographical patterns
Hi,
Let us get an introduction of the problem first, Incomplete dominance is a pattern of inheritance in which, offspring from the cross of two parents shows a phenotype that is not like either parent but in between both.
For example: Let us take the example of Oompah's hair that can be either red or purple or blue. As described in the question, Red is dominant so let us denote allele for Red hair with R. The other hair color is blue that is recessive, let us denote its allele with r. Now, there is another intermediate phenotype that is purple, let us denote it with Rr because it is derived through a combination of R and r.
Now, here is the key for all possible genotypes and phenotypes of Oompahs. There are only three possible genotypes and phenotypes for the hair color.
Genotype: Phenotype
RR : Red hair
Rr : purple hair
rr : Blue hair
This is because no allele can fully express itself over the other. So is we cross a red hair Oompah with Blue hair Oompah, let us see what will happen:
RR x rr
Gametes: r and R
rr: Rr : Rr : RR
It means that 25 % of the offspring will have red hair, 50% will have contain purple hair and 25 % will have blue hair.
RR: Red hair 25%
Rr: Purple hair 50 %
rr: Blue hair 25%
Hope it helps!
Interphase
During interphase, there are three subdivisions: G1, S, and G2. G1 is the growth and development phase. S phase is when the cell duplicates its DNA, so that it can distribute it. In G2, the cell finishes its preparations for mitosis by checking the DNA and ensuring the mitotic proteins are present.
Steps of Mitosis
Prophase
The mitotic spindle begins to form, the nucleolus disappears, the nuclear envelope breaks down and the chromosomes begin to condense.
Metaphase
During metaphase, the chromosomes line up at the metaphase plate in the center of a cell. The chromosomes are connected to the mitotic spindle on either side.
Anaphase
Motor proteins drive this process by pulling the sister chromatids apart towards opposite ends of the cell.
Telophase
The chromosomes begin to de-condense, the nuclear envelope and the nucleolus reappears, and the spindle fibers disappear.
Cytokinesis
After telophase, cytokinesis is the splitting of the cytoplasmic material. It completes cell division.
Hope this helps! :)
Answer:
True
Explanation:
The biomolecules are the macromolecules composed by the polymerisation of small units called monomers. Since the biomolecules are the molecules in which both the covalent and noncovalent bonds are present.
Both covalent and non-covalent bonds stabilize the structure of the biomolecule like in DNA the phosphodiester bond between the two nucleotides but the DNA also contain the non-covalent bonds like hydrogen bonds between the base pair which allows the complementary base pairing a stabilizes the helical structure of DNA.
Thus, True is the correct answer.
