Trong cấu trúc siêu hiển vi của NST sinh vật nhân thực, sợi nhiễm sắc của nhiễm sắc thể có đường kính

A. 300nm

B. 110nm

C. 300 A⁰

D. 110 A⁰

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. Fill in the appropriate word in question 27

        In order that they could ensure higher (23) _________, TV producers have developed a whole new breed of programmes featuring real people. In Europe the most famous of these (24) _________reality TV shows was probably Big Brothers, where 12 ordinaiy people volunteered to live under the watchful eye of TV cameras 24 hours a day. In America, the top show was Survivor, based on a similar concept, in which 16 constants are abandoned on a desert island. But the ultimate example of the genre must surely be The Osbournes, first (25) _________on MTV in 2002, in which the homelife of rock star Ozzy Osbourne and his family was laid bare to public scrutiny. Obsoume himself was already a (26) _________name as the former lead singer of the highly successful heavy-metal group, Black Sabbath, The show was described as a real-life sitcom because it (27) _________light on Ozzy’s softer, more humorous side. It revealed his devotion to his teenage kids, even though he was often heard yelling and swearing at them. The programme brought in millions for the Osbourne family and certainly blurred the boundaries between reality and television.

A. opened

B. wound

C. shed

D. set

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. Fill in the appropriate word in question 23

        In order that they could ensure higher (23) _________, TV producers have developed a whole new breed of programmes featuring real people. In Europe the most famous of these (24) _________reality TV shows was probably Big Brothers, where 12 ordinaiy people volunteered to live under the watchful eye of TV cameras 24 hours a day. In America, the top show was Survivor, based on a similar concept, in which 16 constants are abandoned on a desert island. But the ultimate example of the genre must surely be The Osbournes, first (25) _________on MTV in 2002, in which the homelife of rock star Ozzy Osbourne and his family was laid bare to public scrutiny. Obsoume himself was already a (26) _________name as the former lead singer of the highly successful heavy-metal group, Black Sabbath, The show was described as a real-life sitcom because it (27) _________light on Ozzy’s softer, more humorous side. It revealed his devotion to his teenage kids, even though he was often heard yelling and swearing at them. The programme brought in millions for the Osbourne family and certainly blurred the boundaries between reality and television.

A. scores

B. levels

C. sequences

D. ratings

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. Fill in the appropriate word in question 24

        Easter is a holiday in late March or early April, the first Sunday after the first full moon after 21 March. Many people (23) _________it with their family or have a short holiday/ vacation. It is also an important Christian festival. Easter Sunday, the day of the Resurrection, is the end of Lent (24) _________ the most important date in the Christian year. Many people who do not go to church at other times go on Easter Sunday. It was once common for people to wear new clothes to church on this day. Women wore new hats, called Easter bonnets. Today, people sometimes make elaborately decorated Easter bonnets for fun. A few people send Easter cards with religious symbols on them or pictures of small chickens, lambs, rabbits and spring flowers, all traditionally associated (25)          _________ Easter.

        The Friday before Easter Sunday is called Good Friday and is (26) _________ as the day Christ was crucified (= hanged on a cross to die). On Good Friday many people eat hot cross buns (= fruit buns decorated with a simple cross). The Monday after Easter is called Easter Monday. In Britain Good Friday and Easter Monday are both bank holidays. In the US, each company decides for itself (27) _________to close or remain open on those days.

A. for

B. as

C. and

D. nor

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. Fill in the appropriate word in question 23

        Easter is a holiday in late March or early April, the first Sunday after the first full moon after 21 March. Many people (23) _________it with their family or have a short holiday/ vacation. It is also an important Christian festival. Easter Sunday, the day of the Resurrection, is the end of Lent (24) _________ the most important date in the Christian year. Many people who do not go to church at other times go on Easter Sunday. It was once common for people to wear new clothes to church on this day. Women wore new hats, called Easter bonnets. Today, people sometimes make elaborately decorated Easter bonnets for fun. A few people send Easter cards with religious symbols on them or pictures of small chickens, lambs, rabbits and spring flowers, all traditionally associated (25)          _________ Easter.

        The Friday before Easter Sunday is called Good Friday and is (26) _________ as the day Christ was crucified (= hanged on a cross to die). On Good Friday many people eat hot cross buns (= fruit buns decorated with a simple cross). The Monday after Easter is called Easter Monday. In Britain Good Friday and Easter Monday are both bank holidays. In the US, each company decides for itself (27) _________to close or remain open on those days.

A. take

B. use

C. spend

D. expend

Căn cứ vào hình 24.1 tính khoảng cách (kilomet) từ Hà Nội tới thủ đô các nước Phi-líp –pin, Bru-nây, Xin-ga-pho, Thái Lan?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks from 33 to 37.  Fill in the appropriate word in question 34

Long ago, Chinese people didn’t say, “How are you” when they met each other or saw their friends. They said,” (33)_____ you eaten your rice today?”. Eating rice (34)_____ such an important part of daily life in China!

Rice is still one of the (35)_____ important kinds of food in the modern world. Nearly half the people that live on our planet eat it every day and in some countries, an adult cats more than 100 kilos of rice each year.

We think that people first (36)______ rice in India. In China, people began eating rice about 5,000 years ago. Rice wasn’t eaten in North America until 17th century, but many Americans prefer to eat pasta these days (37)_________ only eat about 2 kilos of rice per year.

A. been

B. was

C. be

D. is

Ở người 2n=4, giả sử không có trao đổi chéo xảy ra ở cả 23 cặp NST tương đồng. Có bao nhiêu nhận định đúng dưới đây:

1. Số loại giao tử mang 5 NST từ bố là 3369

2. Xác suất một loại giao tử mang 5NST từ mẹ là  C 23 5 / 2 23

3. Khả năng một người mang 1NST của ông nội và 21 NST của bà ngoại là 8,269.10^-11

4. Xác suất sinh ra đứa trẻ nhận được 2 cặp NST mà trong mỗi cặp có 1 từ ông nội và 1 từ bà ngoại là 0,0236

A. 3

B.1

C.2

D.4