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olga nikolaevna [1]
3 years ago
13

An alleles is dominant is heterozygote when it is

Biology
1 answer:
Fittoniya [83]3 years ago
4 0

An allele is dominant and heterzygote (Pp) when a dominant allele (P) is crossed with a recessive allele (p).

Explanation:

A dominant allele is the one with a particular dominant character or phenotype which dominates even though there are other alleles found.  

A heterozygous allele results from two different alleles coding for a gene.

A heterozygous dominant allele (Pp) results from the crossing of a dominant allele (P) with a recessive allele due to complete masking of the recessive allele (p).

For example, when dominant brown eyes are crossed with recessive blue eyes, in a heterozygous dominant allele results in brown eyes and masks the recessive blue eyes.

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Nitrogen base, carbon sugar, phosphate group, What macromolecule is this?
deff fn [24]

Answer:

The macromolecule is nucleic acids (more importantly the nucleotides)

Explanation:

Nucleotides belong to the DNA/ nucleic acid part of macromolecules.

3 0
3 years ago
What is the role of auxin in plants​
Sophie [7]

Answer:

Auxin is a key regulator of plant growth and development, orchestrating cell division, elongation and differentiation, embryonic development, root and stem tropisms, apical dominance, and transition to flowering

Explanation:

Hope this helps you

3 0
3 years ago
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What effects does hydrogen bonding and polarity have on water?
lesya [120]
Oxygen has a partial negative charge, whereas hydrogen had a partial positive charge.

This means that water molecules are polar and can be used to dissolve a lot of chemicals, that's why water is such a popular solvent.
7 0
3 years ago
If the Sun and volcanoes were controlling the climate, the climate would
Neporo4naja [7]

Answer:

<em>The correct option is B) undergo global warming at the same rate as we are seeing currently</em>

Explanation:

The Sun and the volcanoes play a great role in controlling our environment and climate even today. The quantity of the rays of the sun hitting the different parts of the Earth determines what the average weather or climate of a region would be. The volcanoes that erupt from the Earth have been a cause for global warming even today and will continue to raise the temperature of the Earth.

7 0
3 years ago
Restriction enzyme HinfI cleaves a five nucleotide DNA sequence GA(A/T)TC. The ambiguity in the central position - (A/T) - means
Afina-wow [57]

Answer:

C) 2.0 kb

Explanation:

It is given that out of the 4 nucleotides A, T, C & G each one has equal probability to occur at any position on the DNA molecule which simply means that the probability of occurrence of any nucleotide at a position is 1/4.

Also, it is given that probability of occurrence of either A or T at 3rd position is equal which means that the probability at that particular position will be 2/4 = 1/2.

Now, GA(A/T)TC is the DNA sequence where Restriction enzyme HinfI cleaves so the total probability of an average HinfI cleavage fragment will be = 1/4 x 1/4 x 1/2 x 1/4 x 1/4 = 0.00195 = 0.2 i.e. 2 kb.

6 0
3 years ago
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