All of the following are properties of prokaryotic cells, EXCEPT
They contain many types of organelles They are usually smaller cells than eukaryotic cells The DNA is concentrated in a nucleoid region, which is not enclosed by a membrane. They are very simple structures.
Q. An inversion heterozygote possesses a normal chromosome and one with an inversion. The gene orders in these 2 chromosomes are shown below- Normal 1 2 3 4 5 6 7 8 9 10 o. The “o” denotes the centromere. Inverted 1 2 3 9 8 7 6 5 4 10 o. Represent the structure of chromosomes after meiosis given the follow events-
(a) A single crossover between genes 6 and 7.
(b) A 2-strand double crossover with one crossover between genes 4 and 5 and one between genes 7 and 8.
(c) A 4-strand double crossover with one crossover between genes 4 and 5 and one between genes 7 and 8.
Discuss the issues related to genetic diversity: mutations, sexual reproduction, migration, and population size.
Summarize the three (3) current competing theories of the origin of life on Earth: it arrived from an extraterrestrial source, it originated as a heterotroph, it originated as an autotroph.
The human microbiome, a diverse collection of microorganisms living inside us and on our skin, has attracted considerable attention for its role in a broad range of human health issues. Now, researchers are discovering that the built environment also has a microbiome, which includes a community of potentially-pathogenic bacteria living inside water supply pipes.
Please read:https://www.sciencedaily.com/releases/2016/03/160314111129.htm
What are biofilms?
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