Cytokinesis generally overlap with the typical cell cycle in the telophase stage. Telophase is the last stage of mitosis; where the sister chromatids reach opposite poles. Telophase and cytokinesis occur simultaneously, during cytokinesis the cell splits in two once the DNA has been replicated and pulled to opposite ends of the cell.
Answer: a line connecting her mother and father, a colored circle representing Jenna, and two empty circles representing her sisters
Explanation: Jenna's red hair can be determined by incomplete dominance.
Incomplete dominance is a condition where neither of the alleles responsible for a trait is dominant.
In incomplete dominance, one allele for a specific trait is not completely expressed over its paired allele. So, if an organism is heterozygous for a trait, it shows a third phenotype.
According to endosymbiotic theory, the chloroplast evolved as a result of engulfment and assimilation of a Cyanobacteria by an eukaryotic cell.
Explanation:
- Endosymbiotic theory supports the view that ceratain organelles of the eukaryotic cell evolved as a result of engulfment of single celled organism.
- Evidences that support this theory is the presence of organellar DNA.
- It is assumed that Mitochondria evolved as a result of engulfment and assimilation of an aerobic prokaryote while Chloroplast evolved due to engulfment and assimilation of a photosythetic prokaryote by an Eukaryote.
- After the engulfment ,these organisms however escaped the phagocytosis and began to benefit the eukaryotic Host.
- Soon it lost many of its Genes to the eukaryotic nucleus and became dependent on the Host.
- Thus a symbiotic association was established between the prokaryote and the host.Giving rise to cell organelles.
I believe the answer is a. crossing over
Answer:
32%
Explanation:
According to Chargaff in his complementary base pairing rule, he stated that the proportion of purine and pyrimidine bases is equal to 100%
That is, A + T + G + C = 100%
Where A=T and G=C i.e the proportion of each base pair is equal.
Hence, if the Guanine content is 18%, it means the Cytosine content of that DNA molecule must also be 18%. Therefore:
18 + 18 + A + T = 100
A + T = 100 - 36
A + T = 64
If the sum proportion of Adenine and Thymine is 64% and each must contain equal proportions, A or T = 64/2 = 32
Hence, Adenine contains 32%, likewise Thymine.
