Answer:
Dominant character is expressed in both the condition i.e. heterozygous and homozygous.
Explanation:
In genetic the dominant allele is signified by capital letter and the allele which is recessive is signified by the smaller letter. The dominant character can be expressed in both the condition that is homozygous dominant(TT) or heterozygous dominant(Tt).
Therefore even the presence of a single allele of dominant character in the gene, the dominant character can mask or suppress the recessive trait from being appeared in the phenotype. Therefore pea plant that is heterozygous for the tallness trait have the dominant phenotype.
Answer:
9:3:3:1
Explanation:
This question involves two different genes coding for height and flower color respectively. The first gene posseses allele T (dominant) and t (recessive) while the second gene possesses allele P (dominant) and p (recessive).
According to this question, two heterozygous tall and purple flowers are crossed i.e. (TtPp x TtPp). Each parent will produce the following gametes combination:
TtPp - TP, Tp, tP, tp
Using these gametes in a punnet square, the following proportion of offsprings will be produced:
T_P_ (tall, purple) = 9
T_pp (tall, white) = 3
ttP_ (short, purple) = 3
ttpp (short, white) = 1
Hence, the ratio of this cross is 9:3:3:1
When climbing a hill or mountain, there are different condions which the body reacts to, first: the body begins to exercise, since it must carry all our weight when climbing up a hill, this generates that the heart accelerates and pumps the blood more quickly so that it reaches our whole body out, and the second one, is that at a higher height, less oxygen, if already, our body comes with the heart shaken by the physical exercise, now it has to accelerate your breathing to get the necessary oxygen for the blood and the body, these two things make us breathe heavily.
When consumers breathe, carbon dioxide is released back into the environment. This breakdown of glucose and other complex organic molecules releases carbon dioxide, which is then recycled by producers.
<h3>How does carbon get moved across an ecosystem?</h3>
In the food chain, for instance, plants use photosynthesis to transfer carbon from the atmosphere into the biosphere. They make sugar molecules by chemically combining water's hydrogen and oxygen with carbon dioxide using energy from the sun.
Energy travels from one trophic level to the next when primary producers absorb energy from the sun to generate glucose, which is then consumed by primary consumers, who are then consumed by secondary consumers, and so on.
learn more about teritary consumers refer
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