Answer:
<em>Exceptions to Mendel's principles:
</em>
Does exceptions mean that Mendel was "wrong"? The answer is "NO". It means that we know more today about diseases, genes, and heredity than compared to what he expalined 150 years ago. Here I have summerized the exceptions with examples:
<em>Incomplete dominance</em>: When an organism is heterozygous for a trait and both genes are expressed but not completely.
<em>Example</em><em>:</em> SnapDragon Flowers
<em>Codominance</em>: When 2 different alleles are present and both alleles are expressed.
<em>Example</em>: Black Feathers + Whites feathers --> Black and white speckled feathers
<em>Multiple alleles</em>: Three or more alternative forms of a gene (alleles) that can occupy the same locus.
Example: Bloodtype
<em>Polygenic traits</em>: more than one gene controls a particular phenotype
Example: human height, Hair color, weight, and eye, hair and skin color.
The answer should be d, they are in domain eukarya so their cells are eukaryotic.
Answer:
This question is incomplete as there is no figure in the question but the compound in the figure is Ethanoic acid (CH3COOH). Hence, we can calculate the mass.
The answer is: 30grams
Explanation:
According to the question, the volume of the compound (CH3COOH) is 1litre while the molar concentration is 0.5M
Molarity or Molar concentration is calculated using the formula:
M= n/V
Where; M= Molarity (M) = 0.5M
n= number of moles (mol)
V= Volume (V) = 1L
Hence, number of moles (n) = M × V
n = 0.5 × 1
n = 0.5 moles.
To calculate the mass in grams of CH3COOH, we say;
Number of moles (n) × molar mass (MM)
Since atomic mass for (C= 12, H= 1 and O=16)
Molar mass of CH3COOH:
= 12 + 1(3) + 12 + 16 + 16 + 1
Molar mass of CH3COOH = 60g/mol
Mass (in grams) of CH3COOH = 0.5 moles × 60g/mol
Mass = 30grams.
Therefore, 30grams of CH3COOH compound are required to make 1 liter of a 0.5 M solution.
Hydrogen is more frequently bonded with Carbon.