The longest phase of mitosis is prophase. Because the nuclear membrane disappears, Nucleolus disintegrates, and the DNA condensed to form chromosomes (each chromosome is composed of sister chromatids attached around centromere.)
Answer:
be genotypically different
Explanation:
- Widow's peak is an example of a dominantly inherited trait, this means that any individual who receives even a single copy of the dominant allele would have a widow's peak present in the phenotype.
- In the given question, the cross is made between a homozygous dominant individual (let the genotype be WW) and a heterozygote (Genotype Ww).
- The cross can be represented as follows :
WW X Ww ----> WW Ww Ww WW
From the cross it can be seen that the<em> offsprings will have the genotype of either WW or Ww</em>, however, since W is dominant over w, the phenotype will always be the presence of widow's peak.
Answer:
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Answer:
Common descent is a theory that states that all organisms are descendants of a single common ancestor.
Explanation:
Common Descent:
- By definition, common descent signifies the common ancestry of a group of organisms.
- Common descent is an approach to explain the similarities between different organisms.
- The theory of common descent states that all organisms have descended from one common ancestor and therefore, possess some degree of similarity.
- Common descent has helped explain the genetic and structural similarities between two entirely different organisms such as reptiles and birds.
- For example, pentadactyl limbs i.e. limb with five fingers or digits is a highly conserved characteristics of all tetrapods. This indicates common descent with modification.
<span>By using seismic waves .</span>
