Three questions about biology. Urgent help!

1.No, acquired environmental changes may be due to environmental factors acting on genes, resulting in gene changes, but the genes that control this trait will not change.

2.Normally, it is not inherited because the genes that control the trait have not changed.

3.Space Pepper.

Product Name: Space Pepper Seeds Net Content: 10 25 grams Zero Price:

Yuan Product Description: The fruit is lantern-shaped, the fruit length is 10-12 cm, the transverse diameter is 8-10 cm, the plant grows vigorously, the plant height is 60 cm (open field) -90-110 cm (protected area), the average single fruit weight is 300-400 grams, the maximum single fruit is more than 500 grams, the commerciality is good, and the yield per mu can reach more than 5000 kg. It is cultivated from green pepper seeds that have traveled through space.

Compared with ordinary green peppers, space peppers have large fruits, thick flesh, good taste, and high vitamin C content, and the yield in field production is 25 percent and 30 percent higher than that of ordinary green peppers. Aerospace breeding has cultivated high-yield space peppers. The use of satellites to carry crop seeds, to carry out space breeding technology research and exploration, is a new attempt to develop modern agriculture, we see these new varieties of pepper is the Heilongjiang Academy of Agricultural Sciences Horticulture Branch Biotechnology Center using aviation mutagenesis breeding approach.

According to experts, most of the pepper seeds that have experienced space travel have undergone hereditary gene mutations, and after returning to the ground for planting, not only the plant has increased significantly taller and thicker, the fruit type has increased, and the yield has generally increased by more than 20% compared with the original, and the quality has been greatly improved, the crop body is also stronger, and the resistance to pests and diseases is relatively strong. In addition to the increase in production, the content of vitamin C and soluble solids, copper and iron and other trace elements is 7% and 20% higher than the original. It tastes fragrant and smooth, fresh and tender, nutritious, red and spicy.

Space pepper is a new type of vegetable produced by genetic mutation.

1. No, the change of traits is affected by environmental factors and genetic factors, so the environment can affect the trait, but cannot change the gene, 2, the traits changed by environmental factors will not be passed on to the offspring, the father and mother are single eyelids, and the child born is also a single eyelid, and the mother has double eyelid surgery, but this trait will not be passed on to the offspring, but the trait changed by the gene may be passed on to the offspring.

3. Space pepper is affected by various rays in space, and genetic mutations have occurred, so the traits have changed.

1，2.No. The traits of an organism are determined by a combination of genotype and environment. Environment-altering traits are the result of natural selection and do not alter genotype. Therefore, the genetic material does not change, so it will not be passed on to future generations.

3. Bringing ordinary chili peppers to space, under the radiation of strong ultraviolet rays, will cause genetic mutations. In order to obtain the seeds of space pepper, and then through artificial breeding technology, more seeds are obtained, so as to promote planting.

Note: The series is not a criterion for judging whether it is correct or not. ）

The environment can cause genetic mutations, and in the long term, they can cause genetic mutations, just like humans and orangutans. Genes are inherited, but some are random, depending on the situation. Space pepper is a genetic mutation that is not necessarily inherited.

1. No, because there are environmental factors and genetic factors that change traits, and changing genes requires conditions such as radiation, chemicals or microorganisms.

2.It will not be passed on to future generations because it will only be inherited if the genetic material is changed.

3.There are various rays in space that can provide conditions for genetic mutations.

If it's not clear, you can hi me.

Why are there hundreds of different species of butterflies instead of just one butterfly? My understanding is that "butterflies" are a general way of survival, and there are many people around the world who adopt the "butterfly" way of survival, but due to different environments, different species of butterflies are left behind. So there are hundreds of different species of butterflies, even in one place, there are different species, and that's because they can all adapt to the environment and so they are preserved.

The same goes for animals, plants, and fungi. Like animals, they can survive both terrestrial and aquatic, but in general, they all adopt the "animal" way of survival. The same goes for plants and fungi, what else is there to do?

First, a genetic mutation occurs in the species, and multiple phenotypes (traits) appear in the same species. For example, a different pattern, or one less eye, etc.). Second, the environment selects these phenotypes, such as eliminating some that are not suitable for the environment (for example, one less eye is not very suitable for the environment), leaving the environment (the butterfly pattern does not have much impact on survival, if they are all more "mimic", so that a variety of butterflies are left).

Although these stays are not very different from each other, they live in harmony and do not compete too much, so they constitute our colorful nature. You can put plants, animals and fungi in it.

b, as can be seen from the figure, the molecular weight of this protein is slightly greater than 130 when it is complete, and two fragments appear after breaking the disulfide bond, note that two are not two, and the number of each fragment is still uncertain, which is slightly higher than 67 and 30., respectivelyWith only two combinations of 30 and one 67, the total protein will be slightly greater than 130So choose B

From the perspective of molecular weight, this protein is composed of 30kd and 67kd peptide chains (the disulfide bond is broken by adding a reducing agent, + lane), and these two peptide chains must be two 67kd plus a 30kd peptide chain to form a molecule slightly larger than 130kd (-lane), and the answer is c

The molecular weight of the top on the far right is a little blurry, so if it's 110, choose B.

LZ, can you explain that a little bit more?

In fact, there is so much you want ... And you don't work hard to check the Internet or any encyclopedia, what you want will be found in it, and you're too lazy!

1.There are several characteristics of running due to body reflexes, such as exaggerated steps, lowering the center of gravity, bending the knees, leaning forward with the upper body figure, and bending the elbows in an L-shape... Wait a minute.

2.Long bones are mainly found in the limbs and are in the form of long tubes. It can be divided into two ends.

The body is also called the backbone, and its peripheral part is densely bone, which is the bone marrow cavity that houses the bone marrow. The ends are more enlarged and are called epiphysis. The surface of the epiphysis is attached to the articular cartilage to form an articular surface, which forms a flexible joint with the articular surface of adjacent bones to complete a wide range of movements.

3.Yes, those with short lifespans generally don't have much time to study, just like mosquitoes only have a few days to live, but once they grow wings, they understand that they want to fly to find someone to drink blood, which her mother didn't teach, everything is blocked in consciousness by genetic data, and when the time comes, you will naturally know how to open the application.

7.Just like the face is for people, no matter how beautiful your face is, it doesn't mean that your bird will grow with it, and it is meaningless to breed, and it is to choose a mate before breeding to play a role.

8.The evidence is gone, but if you look at the gray wolves living in the cold zone and the hyenas in Africa, living in groups is good for hunting and protecting the young, and the group can also fight against enemies that are larger than you, but the bad thing is the distribution of food resources and the need to move once the nest is tracked. However, tigers that live alone at the top of the food chain are different, and they also have their own territory, probably because there are no natural enemies and the energy demand is huge, so it is better to live alone than in groups.

10.It's like a child you didn't teach him to walk, but when the time comes, he will get up and walk on his own; The mother bird gave the insects to the young birds, and did not name the young birds as food to eat, but the young birds will still open their mouths naturally. This behavior can be said to be both genetic and learning, but birds are more conducive to competition and reproduction with acquired learning and hard work.

For the time being, I'll add something else.