امتحان لايف Bio ||| Unit 1 Chapter 3 Reproduction Lesson 1 to Lesson 5

Plasmodium malaria produce merozoites by…………

Ciliated sperms in Polypodium ……………………

In the life cycle of Adiantum, which of the following divides by meiosis to produce haploid cells? ……………

No. of chromosomes in the generative nucleus of pollen grain equals the no. of chromosomes in …………..…

The no. of spore mother cells which produce 20 microspores is……………

Meiosis happens before fertilization in all the following except…………….

Fertilization is completed in petunia flower in the……………

All the following organisms produce zygote except…………

Tomato seeds are………

……………transfer food to the ovule

……………..….is an example of endospermic seeds

If the no. of chromosomes in generative nucleus is X, the no. of chromosomes in tube nucleus is………………

Stages which produced from asexual reproduction of plasmodium in anopheles mosquito are……………

The no. of male nuclei in pollen grains that can produce from 4 spore mother cells……….

All the following produce gametes by mitosis except ………………

The cells of spirogyra contain ………….……. the number of chromosomes in the zygote.

From the ex-endospermic seeds is …………………

Some plants such as banana & pine apple, naturally form seedless fruits by ………

If the number of chromosomes in the pea plant cell is 7 pairs of chromosomes , so the number of chromosomes in the embryo of the plant will be ……………

If the number of the chromosomes in endosperm cells of the maize grain is 33 chromosomes, so the number of chromosomes in the embryo of this grain will be ………………

In early maleness hermaphrodite flowers, the plant depends on self-pollination.

The no. of cells which degenerate after the fertilization of the ovule in the plant………

The no. of cells which degenerate during the maturation of the ovule in the plant is ………..

The gametophyte in ferns is formed from the division of the spore mother cell by …………..

If the chromosomal number in the endosperm of rice is 36, the no. of chromosomes in the embryo will be …………

All the following gonads produce gametes by mitosis except…………

Process (es) that stimulate conversion of ovary to fruit. ……………

2^nd meiotic division during oogenesis happens in the ………………

If ovulation happens on 20^th of the month, the next cycle will start on………..

New menstruation cycle starts when the conc. of ……………. decrease

All of the following pass from placenta to fetus except……………….

Test tube babies can be used to solve the problem of…………..

Which of the following doesn’t prevent meiosis II ………….

.…………. is a diagnostic hormone for occurrence of ovulation

The maturation of ovum during the menstrual cycle lasts for…………..

The human embryo is formed is …………

The follicular phase of the ovarian cycle …………….

The decrease of the ovarian hormones leads to increase in the hormone ……………

The hyaluronic enzyme works in the ………………….

The number of polar bodies that resulted from meiosis of 3 primary Oocytes is……..

The reduction of chromosomes number in spermatogenesis and Oogenesis take place during …………….phase

During formations of the human ova(or sperms), the stage in which the size of cells increases with the stability in their number and number of chromosomes is……………

If nuclei from embryonic cell of toad A or transferred to an empty ova from toad B ,the new individuals will be similar to ……………

The sex of individual is differentiated in……………….

In the opposite diagram:

Write the number of the following

1-Is produced from meiotic division of spore mother cell……………

In the opposite diagram:

Write the number of the following

2-Will fuses with male nucleus to produce a zygote ……

In the opposite diagram:

Write the number of the following

3- Pollen tube enters through it ………………

In the opposite diagram:

Write the number of each stage of the following.

1-In which the meiosis division occurs.

In the opposite diagram:

Write the number of each stage of the following.

2-It infects the hepatic cell of the human.

In the opposite diagram:

Write the number of each stage of the following.

3-It causes the malaria symptoms.

In the opposite diagram:

Write the number of each stage of the following.

4-The infective stage for the human R.B.C.s.

In the opposite figure:

1-what are the hormones that stimulate the formation of structure no. (2)?

In the opposite figure:

2-what are the hormones secreted from No.(4)

In the opposite figure:

3-How many chromosomal sets in no. 3?

In the opposite figure:

1-Fraternal twins are in figure (s) …………………………

In the opposite figure:

2-Figure ………………..produces more progesterone than figure …………………………

Examine the following figure, then answer:

1-Mention the hormone required for formation of no. 1?

Examine the following figure, then answer:

2-Mention the hormone required for formation of no. 6?

Examine the following figure, then answer:

3-In which phase cells no. 2 are produced?

Examine the following figure, then answer:

4-Testes are ………………