If crossing over did not occur why will meiosis still increase genetic variation

Hello Im 12 and i have a weird problem soo for some reason i spill some clear slimy fluid y my cucumber so i clean it but for some reason y comes more i clean it but it comes more BTW i dont watch stuff for think of stuffs

The equation shows a chemical reaction using 64 grams of calcium, 162 grams of zinc carbonate, and 152 grams of calcium carbonate calcium + zinc carbonate - - calcium carbonate + zinc According to the law of conservation of matter, how much zinc is

Of 1308 people who came into a blood bank to give blood, 314 people had high blood pressure. estimate the probability that the next person who comes in to give blood will have high blood pressure (to 3 decimal places). a. 0.250 b. 0.490 c. 0.240 d.

Which type of mutation affects more genes a gene mutation or a chromosomal mutation?

All of the following are examples of voluntary muscle movement except A. heart beating B. leg kicking a soccer ball C. arm picking up a glass

Both external and organization factors shape internal pay structures. a. True b. False

Which of the following describes the solar radiation absorbed by and radiated from earth?

Mutations in DNA are usually caused by chemical or radiation damage to DNA molecules, followed by imperfect repair of the damage. Immediately after this kind of imperfect repair, there may be a mismatched base pair in the DNA.

The Principle of Uniformitarianism is a A.) biased method of dating rocks. B.) complex method of dating rocks. C.) creative explanation for how rocks are made at present. D.) non-testable explanation of how rocks are made at present.

What is ribose in rna