Neutral carbon-12 (or any carbon atom) has 6 electrons with a total negative charge of 6e- orbiting a nucleus with a total positive charge of 6e+, so that the total net charge is zero. The nucleus is made up of 6 protons, each with a positive charge of e+, and 6 neutrons, each with zero charge.
C...the animals will be attracted to eat the fruit and then spit out the seeds causing new life to grow
The determination of the past arrangement of leaves from bare twig are
- Flower bud
- Lateral branching
- Lateral terminal bud
- Leaf scar
- Node
- Inter node
- Auxiliary buds
- Bud scale
- Terminal bud
<u>Explanation:</u>
Terminal bud: it is the large bud at the apex of the twig. Uses of the bud is to protect the dormant meristem.
Bud scale: a small modified leaf on outside of bud.
Auxiliary bud: It is found just above the each leaf scar. Not all twig will have a full complementary of auxiliary buds. They frequently gets damaged.
Lenticles: Opening in the bark that allows for gas exchange into and out of underlying living tissues.
Leaf scars: It is present at the stem for the triangular regions.
Options have not been provided for the question. They are as follows:
What is the correct order for these genes using a linkage map analysis?
A. Z-X-Y-W
B. X-W-Z-Y
C. W-X-Y-Z
D. Y-W-Z-X
E. Z-X-W-Y
F. Y-X-W-Z
Between which two genes is crossing over most likely to occur?
A. B and D
B.X and Z
C. X and W
D. X and Y
E. W and Z
F. Y and W
G.Y and Z
Answer:
Correct order for these genes using a linkage map analysis: E. Z-X-W-Y
Two genes between which the crossover is most likely to occur: G.Y and Z
Explanation:
According to linkage concept, recombination frequency between two genes = distance between two genes in cM
Here, smallest distance is between X and W ( 7cM ) so they are present next to each other. Distance between X and Y is 17cM and between W and Y is 10cM so W is present between X and Y. Distance between X and Z is 13 cM. Since on one side of X, W and Y are already present Z lies on the other side. So, the final gene order comes out to be, Z-X-W-Y.
According to the gene order, Y and Z genes are farthest from each other. Chances of crossover or recombination increases with increasing distance between genes. So, Y and Z have the highest probability to show crossing over.
Answer:The second choice is best !
Explanation:
