In squash, the fruit can be white, green, or yellow. one gene determines whether the fruit will be white or colored, while another gene determines whether a colored fruit will be yellow or green. recall that yellow (y) is dominant over green (y), and white (w) is dominant over color (w). if a squash has yellow fruit, could it have had a white parent? yes could it have had a green parent? yes

Could it have a white parent: Yes

Could it have a green parent: Yes

Explanation:

There are many variables to be taken into account when breeding plants to observe genetics.

In a yellow fruit, the genotype has to be Y_ww, this genotype can be seen to have a dominant gene (Y) that codes for yellow, and recessive (ww) to code for color. However if there was a single dominant W gene, then the fruit would be white, regardless of the Y/y gene, hence a white fruit would have the genotype __W_.

Can a yellow fruit come from a white parent?

If we assume the parent had a genotype like YyWw, and that plant formed gametes (YYWW, YYWw, YYww, YyWW, YyWw, Yyww, yyWW, yyWw, yyww), we can see that most of those genotypes will code for the same phenotype (eg. YYWw and yyWW will both code for white fruit), but there will be offspring with yellow fruit (Yyww).

Can a green fruit come from a white parent?

Again, looking at the genotypes shown in the previous example, the genotype coding for green fruit (yyww) is there, however it is very unlikely that self-pollination of a white parent will produce a green offspring (although it is possible).

by drinking easy

very easy

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.