Answer:
A) a cow who's coat color is roan (red and white) : Co- dominance
B) A red flower and a white flower produce a pink flower: Incomplete dominance
C) In rabbits there are 4 different versions of the gene for coat color- Multiple alleles
Explanation:
Co-dominance can be described as a phenomenon in which the two different phenotypes of the parents can be seen in the offspring produced by them. For example, In the option A, the cow had a parent with red coat colour and a parent with a white coat colour. Both these traits were seen in the offspring.
Incomplete dominance is a phenomenon in which parents of two different phenotypes give rise to a new phenotype in the offspring which is not present in both of the parents.
Answer:
The correct answer is - deals with the motion of an object without or with the reference of force.
Explanation:
The mechanism is the branch of sciences that deals with an object in a motion under the reference force or the object that remains at rest. This branch of physics leads to topics of gravitational force, electricity, quant, or magnetism according to the nature of the forces involved.
Modeling, aerodynamics, and all other applications of mechanics required the use of laws of newton, the formula of mathematics, and algebra.
Answer:
Energy processing
Explanation:
In the food web, the grass is the producer of energy gazelle is the consumer, the cheetah is the secondary consumer.
What is a food web?
In the ecological community, the food web is a graphical representation of the flow of energy between producers of energy and consumers.
it is basically an interconnected food chain.
Answer:
At the neuromuscular junction, calcium must enter the synaptic end bulb to stimulate the release of acetylcholine, which binds to ligand gates so sodium ions can enter the muscle fiber.
Explanation:
Skeletal fiber contractions are based on different physiological and biochemical phenomena that happen in every cell. These phenomena are due to stimulation produced by somatic motor neurons, which axons get in contact with muscle fibers through a neuromuscular synapse. In rest, attraction strengths between myosin and actin filaments are inhibited by the tropomyosin. When an action potential is originated in the central nervous system, it travels to the somatic motor neuron membrane: the muscle fiber, and <u>activates the calcium channels releasing it in the neuron</u>. <u>Calcium</u> makes vesicles to fuse with the membrane and <u>release the neurotransmitter named acetylcholine (Ach)</u> into the synaptic space in the juncture. Then, <u>Ach binds to its receptors on the skeletal muscle fiber</u>. This causes the <u>ion channels to open</u>, and positively charged <u>sodium ions cross the membrane</u><u> </u><u>to get into the muscle fiber</u> (sarcoplasm) and potassium get out. The difference in charges caused by the migration of sodium and potassium makes the muscle fiber membrane to become more positively charged (depolarized). The action potential caused by this depolarization enters the t-tubules depolarizing the inner portion of the muscle fiber. This activates calcium channels in the T tubules membrane, that make the calcium be released into the sarcolemma. At this point, tropomyosin is obstructing binding sites for myosin on the thin filament. When calcium binds to the troponin C, the troponin T alters the tropomyosin by moving it and then unblocks the binding sites. Myosin binds to the uncovered actin-binding sites, and while doing it ATP is transformed into ADP and inorganic phosphate. Z-bands are then pulled toward each other, thus shortening the sarcomere and the I-band, and producing muscle fiber contraction.