The answer is different magnification lenses. Leeuwenhoek use a microscope with different magnification lenses which enabled him to see bacteria. <span>His microscope was able to achieve 50-300x magnification, which enabled him to see a variety of bacteria.</span>
The right option is Courtship
Courtship is a behavior in which different
species interact and select their partners for mating which leads to
reproduction. Most times, the female specie chooses the desired male to mate with before
copulation. Various behaviours such as display
of strength, dancing and vocal utterance are often used during courtship. For the question given above,<span>the type of behavior displayed by the species of balloon flies is an example of courtship.
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Answer:
2% of the progeny will be double crossovers for the trihybrid test cross
Explanation:
By knowing the positions of genes, we can estimate the distances in MU between them per region.
- Genes A and B are 10 map units apart (Region I)
- Genes B and C are 20 map units apart (Region II)
- Genes A and C are 30 map units apart
----A-------10MU--------B-------------20MU-------------C---
Region I Region II
We can estimate the recombination frequencies by dividing each distance by 100.
• recombination frequency of A-B region = 10MU / 100 = 0.10
• recombination frequency of B-C region = 20MU / 100 = 0.20
Now that we know the recombination frequencies in each region, we can calculate the expected double recombinant frequency, EDRF, like this:
EDRF = recombination frequency in region I x recombination frequency in region II.
EDRF = 0.10 x 0.20 = 0.02
2% of the progeny will be double crossovers for the trihybrid test cross
<span>Chloroquine could lead to blindness if it is not used properly. This anti-infective can accumulate in the retina or optic nerves and lead to blindness if overused. This medicine is typically used as a way of combating malaria, but as shown, it can have side effects that are very negative.</span>
Right upper is the location for the duodenum
