Because Ye Qiu had done previous tests of the biology imo exam, he had already figured out how difficult it would be for this biology imo exam.

If there is no difference or difference in this year's edition, it will definitely be the same as in previous years.

Even if the difficulty is increased to the maximum, compared with high-difficulty papers such as physics and chemistry, the imo test papers in biology are no different from sprinkling water.

Of course, Ye Qiu also knew that even if he told Lin Cai, Lin Kaiyu would only treat him as he had already treated these papers as if they were playing around, and could get full marks by just writing them casually.

Therefore, the smile on Ye Qiu's face was as modest as ever.

"Teacher, I want to be modest, but now this situation doesn't allow you to say what can I do?"

Ye Qiu's helpless and speechless look made Lin Kaiyu smile and shake his head, and smile and scold him.

"You boy, you have such a rude sentence that you want to let students from other countries hear it. They may be angry with you!"

After a brief chat between the teachers and students, Ye Qiu said goodbye to Lin Kaiyu and entered the crowd, lined up in order to enter the examination room.

Another exam room was changed this time.

The examination room where Ye Qiu is located is just in the corner of a building. The terrain is quite good and it is shaded by the sun.

But the other candidates are not so lucky.

Not to mention the place next to the window, other places have also increased the temperature in the house a lot due to two reasons.

In addition, the air conditioning equipment was broken on the exam site, and they were all using temporary fans.

Everyone complained.

Ye Qiu came to the teaching floor with a calm expression on his face, and was waiting for the entrance of the examination room to take the exam time.

As soon as he stood at the door, he unexpectedly discovered that Kelsey was in the same exam room as him.

When the two met, they smiled slightly, and nodded each other, even if they had greeted each other.

After waiting for about five minutes, as the ringtone rang, a string of English prompts also began to remember the exam room.

Most of them remind them of some order and precautions in the examination room.

At this time, the invigilator also came over, went up to open the door, and signaled the students to walk in.

The invigilator changed two, and he was still a professor in charge of biology or a doctoral student.

All in all, they are all big shots in biology.

Ye Qiu didn't care. He found his seat number displayed on his candidate certificate and sat down.

As soon as he sat down, he unexpectedly discovered that Kelsey's position was just diagonally in front of his left aisle.

The two are quite destined to be together.

As if he had noticed Ye Qiu's gaze, Kelsey moved slightly, then turned his head and smiled at Ye Qiu.

The smile was both innocent and kind, and his pure facial features not only made Ye Qiu look amazing for a moment, but other students around him were also lost in the sight of Kelsey's face.

This little girl looks really pretty.

This is a bit like An Ran, she looks good and is a talented girl in the fields she likes, and she has heights and thinking that others can't help but find the enemy.

And they are also rare high-IQ talents.

Ye Qiu thought of this inexplicably, then shook his head and took his thoughts back and put them on this biology imo exam.

I sat in the seat and waited for about five minutes, and then the official staff of the organizer distributed the papers one by one to the invigilators in each examination room.

As the test paper was distributed, Ye Qiu took the paper and browsed it from beginning to end.

Then, a faint smile appeared on the corner of his mouth.

Everything was indeed as he expected, and it was indeed the simplest of the four exams he had encountered at the moment.

Although the difficulty has increased a lot, it has been more difficult to reach several levels than the previous biology exams.

But this is also for other students, and for Ye Qiu, it is not even a particularly difficult one.

At most, it would only take two or three minutes to think about it, and the rest would not have any impact at all.

But there is a short answer question that is interesting.

t-control the dominant alleles of plant A, which are manifested as high plants. t-recessive alleles of plant, which are manifested as dwarf plants. r-dover genes control the green of stems. r-recessive genes control the purple color of stems. In the randomly affected plant a plant population, the proportion of phenotypes has been given.

Answer the following questions:

a. What is the percentage of plants with genotype tt?

b. What is the percentage of plants with genotype ttrr?

It can be seen from the table that the proportion of phenotypes in the plant population of random plastic powder has a specific dominant inheritance.

If you really want to answer, you still have to start with hardy-weinberg's law.

This also leads to the answer, a=36%; b=23%.

The reason is based on hardy-weinberg's law:

a.p(t)=0.4,p(t)=0.6, tt plants are 0.36;

b.p(r)=0.2,p(r)=0.8,rr plant is 0.64;

The ttrr plant is p(tt)×p(rr)=0.36×0.64=0.23.

In this way, the answer is clear at a glance, but few people can think of this case, so when they are written, they will easily answer from the direction of cytogenetics and plant population-related proportions.

This is a very obvious trap.

If you really write such an answer according to the direction of cytogenetics or plant population-related proportions, then the total number of this question will be completely gone.

Unexpectedly, the teacher who gave the questions for the biology paper this year seemed to be even more interesting than he thought.

Of course, in addition to this, there is also a multi-choice question, which is quite interesting.

105. Which of the following statements is correct?

a, Protein: Antibody, Function: Binding with some parts of the antigen.

b, protein: antibody, function: immobilize oxygen.

c, Protein: Hemoglobin, Function: Fixed oxygen.

d, protein: hemoglobin, function: binds to some parts of the antigen.

At first glance, some students who have not carefully reviewed the questions or have not thought deeply are likely to choose the first and last options.

But if you look carefully, there are still many traps inside.

Antibodies or immunoglobulins are proteins synthesized by animals due to the emergence of foreign substances.

Antigens or immunogens are foreign macromolecules that can induce the formation of antibodies.

Proteins, polysaccharides and nucleic acids are effective antigens.

Antibodies have a highly specific affinity for antigens.

This specificity binds to specific sites of the antigen, which are called antigen determinants.
Chapter completed!