Crossing over creates new gene combinations which aren't found in the parent.
I hope this helped.
B) the fatty acid chains are the part of the cell membrane which is non polar and prevents the cell from dissolving
A basic need is defined as something that a living thing could not live without. A burrow would be the correct answer because it is where a chipmunk lives. Another example could be a shark and it's need for the ocean.
If an atom is in its natural state the number of protons will equal the number of electrons. This is because an atom naturally wants to be "even" and since protons have a positive charge, the atom will have the same number of electrons (negative) so that they cancel each other out.
Answer:
- 25 tall individuals, TT
- 50 medium individuals, Tt
- 25 short individuals, tt
Explanation:
<u>Available data</u>:
- The size of this species was determined by a single gene
- TT- Tall
- Tt- Medium
- tt- Short
- Total number of individuals in the progeny, N = 100
There are three phenotypes and only one gene, so it seems that this is an example of incomplete dominance, where the medium-size is the intermediate form between tall-size and short-size.
Cross: between two medium Gazorps
Parentals) Tt x Tt
Gametes) T t T t
Punnett square) T t
T TT Tt
t tT tt
F1) 1/4 = 25% TT, tall
2/4 = 1/2 = 50% Tt, medium
1/4 = 25% tt, short
100% of the progeny ------------ 100 individuals
25% Tall, TT ------------------------X = 25 individuals
50% Medium, Tt -------------------X = 50 individuals
25% Short, tt ------------------------X = 25 individuals