Answer:
A and T occur in similar proportions.
G and C occur in similar proportions.
Explanation:
There are four nitrogenous bases that form integral part of DNA, these are Adenine (A), Guanine (G), Thymine (T) and Cytosine (C). Due to specific base pairing between these bases, (Adenine is always linked to Thymine through two double bonds and Cytosine is always linked to Guanine through three double bonds), it is estimated that A and T occur in similar proportions. while G and C occur in similar proportions. <em>This was proposed by Chargiff for the first time and now it is considered to be as Chargiff rule. </em>You can see chart in attached image to know that how equal the ratios are found experimentally in different living organisms.
Hope it helped!
It was also found that an increase in testosterone during the PASP predicted subsequent willingness to choose competitive tasks (3, 28, 29). ... Aggression research in human studies has revealed an interesting property of testosterone dynamics, its rapid fluctuations provoking reactive aggression in response to stimuli.
Answer:
The correct answer is - lithosphere.
Explanation:
The lithosphere is the hard rigid layer of the earth or the planets. It is made up of the earth's crust and uppermost layer of the mantle. It has shown an elastic nature on the time scale for more than a thousand years.
The lithosphere has rocks and brittle solid in the crust and the top layer of the mantle.
Thus, the correct answer is - lithosphere.
In meiosis, crossing over occurs so there an be a genetic variation in the offspring. Genetic variation is vital to survival. In mitosis, crossing over would be a bad thing because the daughter cells need to be identical. Identical meaning the same genetic code. Therefore, crossing over wouldn’t be a positive process in identical daughter cells.
Ecology
is made up of the science of biology. Ecology is a science that deals with the
relationships between groups of living things and their environments. To exist
with one another, organisms belonging to a same species either compete for the
resources or divide it amongst themselves, where animals and plants of the same
species co-exist and creates a beauty with nature.
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