Answer:
in the mutated snapdragon plants, the green leaves started becoming yellow. this conditioned plant is known as, aurea, which has less chlorophyll than green plants.
Crosses had done between various combinations of green and aurea plants and the result was- green x green = all green
aurea x aurea = 2/3 aurea, 1/3 green
green x aurea = 1/2 green, 1/2 aurea
here, the green allele is G, and the aurea allele is GA,
according to the question, in the cross of plants,
the green plants produced all green but some of the crosses of aurea phenotype also gave the green phenotype.
so it can be concluded that the green phenotype (the wild type) came from the recessive allele. No instances of incomplete dominance or codominance were shown.
Thus, the following genotypes would have their phenotypes, as follows:
GG - green
GAGA - aurea
GGA - aurea
The right answer is A: intercellular communication.
An example of intercellular communication is the one between the kidney, liver and lungs to preserve water-soluble homeostasis.
Angiotensinogen, an inactive protein produced by the liver, circulates in the blood. It is the precursor of the active peptides angiotensin I and II, and the only substrate of renin.
In the event of a drop in the pressure in the renal artery, renin (an enzyme sometimes considered as a hormone) is secreted in the kidney by differentiated myoepithelial cells of the arteriole afferent of the juxtaglomerular apparatus. There are also other stimuli promoting renin secretion: decreased natremia in the distal convoluted tubule, ß-agonists, hyperkalemia, PGI2 and stimulation of juxta-glomerular cells by the sympathetic nervous system)
The angiotensinogen is cleaved by the renin and forms a decapeptide called "angiotensin I", inactive.
Angiotensin I will then be converted primarily to angiotensin II by a carboxypeptidase, the angiotensin converting enzyme. This enzyme, secreted by the liver, acts at the pulmonary level.
Answer:
Codominance
Explanation:
Codominance is the pattern of inheritance when both the alleles of a gene are expressed in a heterozygote. Here, none of the alleles is recessive to other allele and there is no masking of expression of one of the alleles in the heterozygous genotype. Therefore, both alleles express themselves equally in a hybrid.
Examples include I^A and I^B alleles of ABO blood type in humans. These two alleles are codominant and are equally expressed in genotype "I^AI^B". The person with genotype "I^AI^B" is said to have an "AB" blood type.
theres a 50% the child will be colorblind
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