2008 年
生物 · 共 58 題 · 點擊選項即時核對答案
Questions 22 and 23 refer to the diagram below, which shows a female reproductive system:
For a successful pregnancy, fertilization usually takes place at
Questions 22 and 23 refer to the diagram below, which shows a female reproductive system:
Which parts will start to have periodic changes once a girl reaches puberty?
After the release of sperms into the vagina, only a very small portion of sperms can reach the site of fertilization. Which of the following is not an explanation for this?
Below are some events that take place after fertilization. Arrange them in the correct order.
The placenta allows the passage of
Which of the following pairs of contraceptive methods are based on the same biological principle?
Questions 28 and 29 refer to the following table which shows some characters of a pair of twins:
| Alan | Ben | |
|---|---|---|
| Blood group | A | AB |
| Ear lobe | present | present |
| Height | 180 cm | 175 cm |
Which of the following conclusions can you draw from the above information?
Questions 28 and 29 refer to the following table which shows some characters of a pair of twins:
| Alan | Ben | |
|---|---|---|
| Blood group | A | AB |
| Ear lobe | present | present |
| Height | 180 cm | 175 cm |
Which of the following can be deduced from the information given?
The following pedigrees show the inheritance of a character in four different families. The character is controlled by a pair of alleles. Which pedigree allows you to deduce the dominant phenotype?
Questions 32 and 33 refer to the following set-up used to study the anaerobic respiration of yeast.
During the experiment, the liquid level inside the glass tube rises. This is mainly due to the release of