<span>The reason why Mendel recorded the results of so many plant crosses is that he wanted to demonstrate how certain genetic traits are expressed in different generations. This way he could demonstrate what traits are dominant or recessive in plants.</span>
Answer:
During the S phase at interphase in meiosis I
Explanation:
During the S (DNA synthesis) phase at interphase in meiosis I, DNA replication occurs here where the chromosomes are doubled. This phase does not occur in meiosis II. At the end of meiosis II, the chromosome number becomes halved in the sex cells. The cell just goes on to divide to ensure haploidy of chromosomes in the gametes such that the sperm from the male and egg from female are both haploid. Fertilization brings about diploidy of the zygote itself
Population decreases by 15.
Birth rate means more population (positive), death rate means less population (negative), immigration means more (positive), and emigration means less (negative). So, just add and subtract the appropriate numbers:
Negative 15 people means that the population decreases by 15.
The two processes are coupled throughout the mitochondrial inner membrane that together make up oxidative phosphorylation are: Electronic transport chain and ATP synthase.
NADH and FADH2 formed during glycolysis; fatty acid and amino acid breakdown and the citric acid cycle contain high-energy electrons.
Oxidative phosphorylation is the process by which these molecules are oxidized by transferring their electrons to O2 and the resulting energy is used in the form of ATP synthesis.
This metabolic process is formed by a set of complex enzymes, located in the inner membrane of the mitochondria, which catalyze various oxidation-reduction reactions.
Oxidative phosphorylation includes two coupled mechanisms:
- Electron transport chain that the set of enzymatic complexes embedded in the mitochondrial membrane that oxidize NADH and FADH2 generating a proton gradient.
- ATP synthase that harnesses the energy of the proton gradient to produce ATP.
Both the electron transport chain and ATP synthase are embedded in the membrane, and energy is transferred from the electron transport chain to ATP synthase by the movement of protons through the membrane, in a process called chemiosmosis.
Therefore, we can conclude that oxidative phosphorylation works with two types of reactions that are coupled, the electronic transport chain that releases energy, while the other ATP synthase uses that energy to carry out its reactions.
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<span>The child is at risk of cretinism. This is a disease marked by stunted physical and mental growth, mainly due to a lack of thyroid production on the part of the mother. A diet lacking in iodine (as iodide) can also be a culprit for hypothyroidism. The person may suffer from varying degrees of mental and physical impairment, depending on the level (and severity) of the hypothyroidism.</span>
