Answer:
P generation: 1 purple flower (AA) : 1 white flower (aa)
F1 generation: 4 purple flowers (Aa) : 0 white flowers
F2 generation: 3 purple flowers (AA, Aa) : 1 white flower
Explanation:
Assuming the parents are AA and aa, the allele for white flowers is recessive, so there needs to be two of them for the trait to be expressed. Thus, the capital A purple allele that the other parent contributes will mask that white allele and all the flowers will appear purple. However, all of the offspring are Aa now, so when they are crossed, there's a 25% chance that they'll both contribute the lowercase a allele that codes for white flowers. Remember that if both of them give the lowercase a allele then the offspring will be aa and appear white.
Answer:
Plant grass and shrubs. Bare soil is easily swept away by wind and water, the two main causes of erosion. Plant roots hold the soil together, while their leaves block rain and stop it breaking the soil apart.[1] X Trustworthy Source Virginia Cooperation Extension Publications and Educational resources from Virginia Tech and Virginia State University Go to source Turf, ornamental grass,
Add mulch or rocks. This will weigh down the soil and stops the soil from moving.
Explanation:
When the food is scarce, cellular slime molds aggregate into a mass of cells that behaves as a single unit called a slug.
<h3>What is the importance of slugs in slime molds?</h3>
- While feeding, the cellular slime molds live as individual, singled-celled organisms. But when the food is scarce and they have to move to new places in search of food, they aggregate in groups of tens of thousands to form multicellular group called slugs.
- In slug some of the cells contribute to a 2–3 millimeter long stalk, which dries up and dies in the process of formation.
- In the presence of excess food, slime molds are present as independent amoeboid cells.
- It is now observed that in the presence of a food source, some farmer amoebae stop feeding and pocket their food for movement in multicellular migration.
Learn more about slime molds here:
brainly.com/question/26609882
#SPJ4
<span>I believe the answer is Tell him you need a note from his health care provider to see if he can participate in practice.
A concussion can be dangerous and need an immediate medical assessment. Doing exercise will be dangerous as it could increase the risk of </span>an accident. It is important to make sure that the athlete is already assessed to prevent an unwanted accident.
