A pedigree chart is a diagrammatic representation showing the occurrence and appearance of phenotypes of a particular gene/traits and its ancestors from one generation to the next establishing relationships between individuals in a family.
Using the letter A for a dominant allele and a for a recessive allele, the genotype of individual I-1 is Aa.
- In the key pedigree nomenclature, an individual marked with the black ink is affected with the trait (and this trait is dominant - A).
- Looking at the F1 generation, there are males affected and females as well.
- For inheritance of the trait, just one copy is enough to become affected.
- Therefore, the male parent is heterozygous for the trait and the female normal (aa) to enable the production of both affected and non-affected individuals.
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Enzymes are catalysts that speed up chemical reactions in the human body.
<h3>What do you mean by Catalysts?</h3>
Catalysts may be defined as those substances that enhance the rate of chemical reactions without being consumed in them.
Enzymes are also considered as catalysts in the body of living organisms. Basically, enzymes are proteins that assist in the speeding up of any chemical reaction in living entities.
Therefore, enzymes are catalysts that speed up chemical reactions in the human body.
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What graph are you referring to?
Answer:
Fungus
Explanation:
Some fungus feed on living waste.
Answer:
See the answer below
Explanation:
<em>Genotype is the genetic composition of organisms and a gene is made up of two alleles.</em>
a) Since the allele for black is B, <u>the genotype for black chickens would be BB. </u>
b) Since the allele for white is W, <u>the genotype for white chickens would be WW.</u>
c) Since erminette color is heterozygous,<u> the genotype would be BW.</u>
d) Two erminette were crossed:
BW x BW
BB BW BW WW
i. <em>Probability of having black chick (BB) </em>= 1/4
ii. <em>Probability of having a white chick (WW)</em> = 1/4
iii. <em>Probability of having erminette chicken (BW)</em> = 1/2
