Measles has an incubation period of between three and 21 days. This is the time period between when a child becomes infected with the measles virus and when symptoms develop. Usually, measles has a typical rash but other viral exanthems (widespread rash) are similar or eczema and allergic skin rash.
The centromere is A. a protein composed of 8 subunits that binds to DNA. B. an A-T-rich region of the chromosome which may be bound by kinetochores. C. proteins that help pull apart sister chromatids at the telomeres D. the name given to a specific short (about 10 bases long) region of G-C rich DNA... show more The centromere is A. a protein composed of 8 subunits that binds to DNA.
Two unduplicated chromosomes Centromere Sister chromatids Sister chromatids Duplication Non-sisterchromatids Two duplicated chromosomes Structure of Chromosomes The centromere is a constricted region of the chromosome containing a specific DNA sequence, to which is bound 2 discs of protein called kinetochores.ach duplicated chromosome appears as two identical sister chromatids joined together. The mitotic spindle begins to form. It is composed of the centrosomes and the microtubules that extend from them. The radial arrays of shorter microtubules that extend from the centrosomes are called asters (âstarsâ).