Course Answer the following questions in the space provided 1 Name two pea plant
ID: 146949 • Letter: C
Question
Course Answer the following questions in the space provided 1 Name two pea plant traits studied by Gregor Mendel. 2. Define genotype. 3. Define phenotype. 4. Why would a pea plant that is heterozygous for the tallness trait have the dominant phenotype? 5. A pea plant with the recessive phenotyp e for tallness would have which of the following genotypes? C. Tt D. TT or Tt 6. A pea plant with the dominant phenotype for tallness would have which of the following genotypes? C. Tt D. TTorTt 7. What is the difference between a Mendelian trait and a polygenic trait? 8. Which of the following is a polygenic wait in humans? A. Hitchhiker's thumb B. Earlobe attachment C. Skin color D. Freckles In the AB0 blo od system, what is/are the possible genotypes for a person who has the A blood type? 9. . In the ABO blood system, what is/are the possible genotypes for a person who has the O blood typeExplanation / Answer
1- there are actulay 7 traits with which medel worked which are as follows-
a-tall or dwarf (length of stem)
b-smooth or wrinkled( form of ripe seed)
c-yellow or green (colour of seed)
d-purple or white ( colour of flower)
e-inflated or constricted(form of ripe pods)
f-green or yellow(colour of unriped pods)
g- axial or terminal (position of flower)
2- GENOTYPE - it can be refered as as a particular gene or setbof gene carried by a individual. example - genes responsible for eye colour, hair colour,size of birds peak etc.
3-PHENOTYPE - This is the observable charecteristics which can be seen as a result of expression of the differnt genes.example- height,eye colour,etc
4- according to law of dominance the recessive trait will be supressed by the dominant trait .recessive can only be expressed when both genes carries same charecter.heterozygous pea plant contains one allele for tallness and other for short in which only dominant will get expressed.
5- B-tt
6-D- TT or Tt
7- Mendelian inheritance refers to the expression of inheritance of monogenic traits that is traits are controlled by one gene whereas polygenic inheritance refers to expression of traits controlled by two more genes.polygenic inheritance doesnot follow mendels pattern of dominance and recessiveness.
8-C- skin colour as multiple genes effect skin colour.
9- AA and AO
10- OO