Which best describes a centromere?
a. sister chromosomes that are held together by a chromatid
b. paired chromosomes that have genes arranged in the same order
c. the part of a chromosome that joins the sister chromatids
d. the material that makes up a chromosome

The correct answer is c The part of chromosome that joins the sister chromatid

Explanation:

Centromere is an important part of chromosome that help to join a pair of sister chromatid.Centromere helps the the assemple of kinetochore, the later helps in the segregation of chromosome

          centromere helps in the activity of cohesin protein that helps in the cohesion of sister chromatid after DNA replication.

            According to the positioning of centromere chromosome can be catagorized into 4 types 1  Metacentric chromosome 2 Sub metacentric chromosome 3 Acrocentric chromosome 4 Telocentric chromosome .

picture a world where computers are building made-to-order personalized robotic arms and synthetic organs, drones are circulating above mars! due to the rapid growth of technology, the future has never been more unpredictable, and it presents a huge challenge in education: we are teaching students how to work in a future that we have never been unsure of. it is widely predicted that in eight years’ time, there will be more jobs in the fields of science, mathematics, technology and engineering than in any other discipline. and, as the technology continues to develop, it will soon become clear that addressing social problems will involve more innovative thinking, and analytical and technical knowledge than ever before. undeniably, there are no subjects that encourage innovative and creative thinking, deep thought, problem solving and independence more than the stem subjects. while it is widely commented on that there is a need to reimagine the ways stem subjects are taught in schools by embracing a more interactive and innovative approach to appeal to more students, it should come as no surprise that some of the most reputable educational organizations in the world are already implementing changes to embrace stem. harvard, for example, announced in 2014 that they were increasing their computer science faculty by over 50% and has since introduced computer science as a core subject for all freshmen. the urgency of supporting stem subjects at a young age is becoming more relevant than ever, as adopting a keen interest in the curricula needs to happen early. however, beyond the age issue is one of gender.

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