c. have appeared in both flasks
d. have appeared in the straight-neck but not the swan-neck flask
Answer:
C. Have appeared in both flasks.
Explanation:
Cells would have appeared in the straight-neck and in the swan-neck flask because the process of boiling water is essential to eliminate the possible microorganisms present in the broth before the experiment.
If only the microbes that were previously in the broth were heated, they would not die and keep playing
Since it is recessive, it will be out ruled unless two recessive genes combine. If one is AA and the other is Aa There will be AA, AA, Aa, Aa. AA is dominant, therefore Aa can have the possibility of either trait. so there is 6 possibility.
A recessive trait is a trait that is expressed when an organism has two recessive alleles or forms of a gene. Traits are features of organisms that can be observed, this includes physical characteristics such as hair and eye colour, and also characteristics that may not be readily apparent, e.g. the shape of blood cells.
Thus, the correct option is "0".
Learn more about the punnet square here: brainly.com/question/23109015
Another name for rooster is a hen.
Hope it helps
B. Seminiferous tubules
C. Cervix
D. Urethra
2. desert
3. savanna
4. tropical rainforest