11. c. crossing-over. Notice how one of the bottom arms of each of the gray and white chromosome overlaps with each other, then their genes switch to the other's arm. That's called crossing over, when homologous chromosomes' genes flip-flop with each other.
14. b. meiosis. Gametes are special daughter cells that are either sperm or egg for sexual reproduction. Since genes are shuffled and daughter cells are not like parent cells, this is meiosis. 1 parent --> 4 non-identical gametes.
16. a. centromeres. During late prophase and all of metaphase of mitosis, identical sister chromatids are fused together at the center of the chromosome "X" by what's called a centromere. Then, during anaphase, the sisters are pulled apart, at these centromeres, by spindles attached to centrioles toward opposite sides of the cell.
17. c. Metaphase only. Although late prophase has this appearance of chromosomes, the best answer is probably only metaphase. It's not in anaphase because that's when sister chromatids are pulled apart at their centromeres.
The correct option is, (B) the value of q is positive.
<h3>
What is photosynthesis?</h3>
- It is a chemical process or reaction that occurs in green plants or living creatures. During this process, carbon dioxide combines with water in the presence of sunshine to produce glucose and oxygen.
- As we all know, photosynthesis cannot occur in the absence of sunshine.
- As a result, the photosynthesis reaction is an endothermic reaction in which energy or heat is supplied to the system.
- This implies that the value of 'q' will be positive. If the system produces heat, the value of 'q' is negative.
To learn more about photosynthesis from the given link
brainly.com/question/12380974
#SPJ4
Answer:
The given question is incomplete - it is missing the options. The missing part can be inferred as being “internal factors or non-environmental factors.”
Notice how the answerer started by highlighting what environmental factors are and then moved on to stating non-environmental factors
Explanation:
The environmental factors affecting transpiration includes:
1) Availability of soil water
2) Wind
3) Relative humidity
4) Temperature
5) Air
6) Intensity of light
Non-environmental factors would majorly include internal or structural factors affecting transpiration which then includes:
1) Position of leaf
2) Leaf surface area
3) Nature of leaf surface
This will definitely help.
Answer: D
Explanation:osmosis is the movement of molecules from a region of lower concentration to a region of higher concentration through a semi permeable membrane.