Always 23 because 23+23 is 46 All humans have 46 chromosomes 23 from dad 23 from mom
Correct: The sun is the center of the solar system. It is mostly gas. It is the most massive object in the solar system.
Answer:
C
Explanation:
The correct answer would be <u>a genotype that was different from that of both parents.</u>
Let us assume that the allele for height is A (for tall) and a (for short). Homzygous tall plant would have the genotype AA while homzygous short plant would have the genotype aa. Crossing both genotypes:
AA x aa
Aa Aa Aa Aa
<em>All of the offspring, even though have the same phenotype as one of the parents, have unique genotype from either of the parents. While the parents are AA/aa, the offspring are Aa.</em>
The correct option is, therefore, C.
Answer:
From food
Explanation:
Food energy is a chemical energy used by humans through the process of cellular respiration. Food contain macromolecules such as lipids, proteins, carbohydrates, water, vitamins, and minerals that are necessary for the human metabolism and they are broken down and used by the series of metabolic steps (glycolysis, Krebs cycle, electront transport chain and oxidative phosphorilation). Digested macromolecules should be used either as a source of energy or as building blocks for the cell.
At the end of catabolic processes within an organism food energy is transformed into energy usable by the cell-ATP.
