Добавил:
Upload Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Essential English for Biology Students.doc
Скачиваний:
586
Добавлен:
10.02.2015
Размер:
8.28 Mб
Скачать

VI. Give Russian equivalents to the following English terms:

English term

Russian equivalent

1

to consist of DNA

2

wrapped in protein

3

matching pairs

4

two sets of chromosomes

5

identical nuclei

6

to be identical to sth.

7

without changing the genetic information

8

for growth of a multicellular organism

9

nuclear division

10

human nerve cells

11

sexual reproduction

12

fertilized cell

13

the light microscope

14

to contain the same genes

15

can exchange genetic material

16

genetically different from

VII. Find synonyms among the pool of words:

Pool of words

Synonyms

1) 1.concept /2.damaged /3. injured /4. idea

2) 1.arise /2.appear /3.vary /4. occur /5.change

3) 1.sex /2.mutation /3.gender /4.change /5.alteration

4) 1.essential/2.reproduce/3.important/4.breed/5.necessary

VIII. Answer the following questions. Use all information given before.

  1. What enables a multicellular organism to grow and replace worn out or damaged cells?

2. What does cell division start with?

3. What two forms of nuclear division do you know?

4. What are chromosomes?

5. What do chromosomes consist of?

6. What is known as homologous pairs?

7. What is the difference between diploid and haploid?

8. What are three main stages of the cell cycle?

9. How does the duration of the cell cycle vary?

IX. Match the sentence halves. Make complete sentences:

1.

Cell division starts

A.

the individual’s mother and the other from the father.

2.

Chromosomes are the structures that provide

B.

and produces two identical nuclei.

3.

Chromosomes consist of

C.

occurring at some point in the life cycle of organisms that reproduce sexually.

4.

One chromosome in each pair comes from

D.

DNA, the genetic material of the cell, wrapped in protein.

5.

In mitosis, the nucleus divides once

E.

according to conditions such as temperature and the type of cell.

6.

The cell cycle is the sequence of events

F.

with the division of the nucleus.

7.

The duration of the cell cycle varies

G.

that occurs between one cell division and the next.

8.

Meiosis is the basis of sexual reproduction,

H.

would be doubled in each generation.

9.

Without meiosis in the life cycle, the number of chromosomes of a sexually reproducing species

I.

continuity between one generation of cells and the next.

Соседние файлы в предмете [НЕСОРТИРОВАННОЕ]