Answer:
Explanation:
What Mendel wanted to happen was to obtain middle-sized plants. What actually happened was that Mendel got tall plants. Due to this result, Mendel called Reccesive to the genes thatdetermined the short offspring, and Dominant to the genes that determined the tall offspring.
Answer: centrioles and centrosomes
Explanation:
Centrioles are small granules found near the nucleus of ONLY animal cells from which flagella and cilia arise. Its functions include
- helping in cell division
- serving as basal body
Centrosomes also is located near the nucleus of animal cells and arranges microtubules. Its function is mainly giving protection to cell.
James Watson<span> and</span>Francis Crick <span> discovered the three-dimensional structure of dna in 1953</span>
Answer: Option E) polar
Amino acid-derived and peptide hormones are unable to diffuse across a cell membrane because they are polar
Explanation:
Amino acid-derived and peptide hormones such as serotonin, epinephrine, dopamine etc, are unable to diffuse across a cell membrane because they consist of several repeating units of amino acids with positively charged or negatively charged side chains.
Thus, the side chains make these hormones water-loving (hydrophilic), and impassable to the hydrophobic layer of the cell membrane.
