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Marat540 [252]
3 years ago
8

Help please i dont get this

Biology
1 answer:
zmey [24]3 years ago
7 0

The answer is B, Jennifer and her husband were both carriers of the allele

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explain why it is important to keep the levels of nucleotides relatively balanced in the context of dna and rna synthesis
juin [17]

Answer:

Read Below

Explanation:

Nucleotides are A & T and G&C you see in DNA and in RNA T is Replaced by U. The reason they must be balanced between G&C and T&A is because G has to bond with A in DNA and G with C so if there is more G than C that means there is mismatches between the DNA nucleotides same thing for A and T. In RNA you follow the same rule. If we have lets say 27% of our DNA as A we have to have 27% as T leaving 23% as C and 23% as G. If there was lets say 29% T while one 27% A then there was a error in DNA replication and could lead to errors in RNA synthesis if not corrected

4 0
3 years ago
Nasim is driving on a snow-covered road, and her car begins to slide. The quick behavioral response and the increased heart rate
Luda [366]

Answer:

1. sympathetic

2. parasympathetic

Explanation:

The sympathetic division of the autonomic nervous system triggers the release of stress hormones from adrenal medulla under emergency conditions. There is a series of physiological responses such as increased heart and breathing rate, an increased flow of blood to skeletal muscles, dilation of pupils, etc. These events helped Nasim to fight the stress conditions.  

Once she was relieved, the parasympathetic system is activated that shut down the physiological responses generated by sympathetic division. It slows down the breathing and heart rate and triggers the digestion and absorption of nutrients to restore the energy level of cells.

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3 years ago
Whenever the characteristics and chemical composition of weathered materials have been altered, they have undergone _____?
poizon [28]
The answer to your is Chemical Weathering
5 0
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charle [14.2K]

Answer:

d. both organisms have different ways of forming their lungs.

6 0
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During which step of cellular respiration is the most ATP produced?
VladimirAG [237]
There are three processes of aerobic cellular respiration; glycolysis, the Kreb's cycle and the electron transport train. The electron transport train synthesises the most ATP. 


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