Answer:
See below.
Explanation:
Let the allele for colour be C (c) and the allele for shape be S (s).
True breeding yellow plant with round seed = CCSS
True breeding green plant with wrinkled seed = ccss
crossing the two;
CCSS x ccss = CcSs (yellow colour with round seeds)
All the F1 offspring are yellow with round seeds (CcSs).
Selfing CcSs to produce F2 generation results in:
9 Yellow, round seeded
3 Yellow, wrinkle seeded
3 Green, round seeded
1 Green, wrinkle seeded.
<em>The inheritance pattern of the two traits follow the law of independent assortment of genes as described by Mendel 2nd law of genetics. Medel stated that characters are inherited independently of one another.</em>
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The correct example about the relationship between the insect hormones ecdysteroid and PTTH is interaction of the endocrine and nervous system. Hence, Option A is correct.
ENDOCRINE SYSTEM:
It is a complex system which is under hormonal control. Hormones are released by the glands and it cordinates body functions from metabolism to growth and development.
NERVOUS SYSTEM:
It is a complex system consisting of organised group of cells called neurons that carry messages from brain and spinal cord to other various body parts.
As PTTH (prothoracicotropic hormone) stimulates prothoracic gland of an insect that triggers the release of ecdysone hormone for the stimulation there should be an neuroendocrine mechanism. Thus, Option A is correct.
Learn more about hormonal interations here:
brainly.com/question/1218436
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Through the urethra which is in a mans' penis or a woman's vagina.
The correct answer is D. It is characterized by coniferous trees.
