اختبار على درس chromosomes

Karyotype of a male human differs from that of the female in ………………………………………..

The ratio between the number of sex chromosome (X) in each of a boy arm muscle cell and a girl arm muscle cell is ……………….. respectively.

The sperm in human carries all the following, except ………………….

Chromosomes are classified into homologous pairs in ……………

Owners of successful race horses hope that the horses’ offspring will be like their parents. How does a young race horse inherit its characters? …………………………….

Even number of chromosomes is resulted when all the following happen, except that ………………………….

If you know that the number of chromosomes in the nucleus of a plant stem cell is (32) chromosomes, the number of chromosomes in the nucleus of a pollen grain for that plant equals ………………………

All the following is an evidence that the chromosomes carry the genetic information in human, except that…………………………

If the number of chromosomes in a human skin cell is (23) pair, the number of autosomes in the sperm is ……………………………….

The primary function of the chromosome is the ………………

If the number of autosomes in an ovum is (X) , the body cells contain …………………… chromosomes.

In the karyotype of human, which of the following is correct? ……………………

All the following are from the characters of human sex chromosomes pair in a female, except that ……………………..

The pair of chromosomes that represents the smallest one in size in the human karyotype is the pair no. ………………………………..

All the following will happen , if the sequence of nucleotides in DNA molecule which expresses a certain gene is changed, expect that…………………

The diploid cells divide mitotically to give……………..cells.

In karyotype of a human female, the pair no . (23) of chromosomes is larger than the ………………………………………………

The nucleus of somatic cell and the nucleus of gamete cell in human contain all the of following respectively, except ………………………………..

The sperms in human differ from each other in ……………….

The pair of chromosomes that is directly larger than the pair no. (8) in size in the female human karyotype is the pair no. ……………..