10th Grade > Biology
HOW DO ORGANISMS REPRODUCE MCQs
Total Questions : 54
| Page 3 of 6 pages
Answer: Option D. -> DNA replication, meiotic
:
D
The process of doubling and replicating the genetic material in the human cells is known as DNA replication and meiotic cell division reduces chromosome number to half in sex cells. DNA replication is essential for cell division to take place.
:
D
The process of doubling and replicating the genetic material in the human cells is known as DNA replication and meiotic cell division reduces chromosome number to half in sex cells. DNA replication is essential for cell division to take place.
Answer: Option C. -> It is produced in the scrotum.
:
C
Ovum or ova is the female gamete produced by the ovaries. It is a non-motile structure larger than a sperm. It is a single, haploid cell with several protective layers outside its cell membrane.
:
C
Ovum or ova is the female gamete produced by the ovaries. It is a non-motile structure larger than a sperm. It is a single, haploid cell with several protective layers outside its cell membrane.
Answer: Option A. -> True
:
A
In human beings, males attain puberty a little later than females. In girls, puberty usually begins at 10-11 years and completes at 15-16 yrs. In boys, puberty begins at 11-12 years and completes around 16-17 years.
:
A
In human beings, males attain puberty a little later than females. In girls, puberty usually begins at 10-11 years and completes at 15-16 yrs. In boys, puberty begins at 11-12 years and completes around 16-17 years.
Answer: Option C. -> Condoms
:
C
A condom can be worn by a man over his penis which helps in the prevention of STDs andalso prevents unwanted pregnancies. Copper T, oral pills and diaphragm are examples of female contraceptives which do not prevent STDs.
:
C
A condom can be worn by a man over his penis which helps in the prevention of STDs andalso prevents unwanted pregnancies. Copper T, oral pills and diaphragm are examples of female contraceptives which do not prevent STDs.
Answer: Option B. ->
Yeast
:
B and C
Yeast and hydra the organisms which reproduce by the process of budding. Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site. A parent organism creates a bud from its own cells, which then form the basis of the offspring organism and develop into an organism resembling the parent. Amoeba and leishmania undergoes binary fission.
:
B and C
Yeast and hydra the organisms which reproduce by the process of budding. Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site. A parent organism creates a bud from its own cells, which then form the basis of the offspring organism and develop into an organism resembling the parent. Amoeba and leishmania undergoes binary fission.
Answer: Option B. ->
To ensure continuity of their species.
:
B
:
B
Reproduction, compared to other life processes such as respiration, digestion, circulation etc., is not that vital and essential to maintain life of an organism. Morover, the process of reproduction takes more energy in comparision. Despite that, It is still a crucial process as it ensures continuity of their species in the biosphere.
Answer: Option B. ->
Kala azar
:
B
Visceral leishmaniasis (VL), also known as kala-azar and black fever, is the second-largest parasitic killer in the world. It is a disease transmitted by the sandfly. The other three diseases namely Warts, Syphilis and Gonorrhoea are sexually transmitted diseases(STD).
:
B
Visceral leishmaniasis (VL), also known as kala-azar and black fever, is the second-largest parasitic killer in the world. It is a disease transmitted by the sandfly. The other three diseases namely Warts, Syphilis and Gonorrhoea are sexually transmitted diseases(STD).
Answer: Option A. ->
True
:
A
Human fertilization is the union of a human egg and sperm, usually occurring in the fallopian tube. The result of this union is the production of a zygote cell, or fertilized egg. This is an important event of sexual reproduction. The fertilized egg eventually develops to become the offspring.
:
A
Human fertilization is the union of a human egg and sperm, usually occurring in the fallopian tube. The result of this union is the production of a zygote cell, or fertilized egg. This is an important event of sexual reproduction. The fertilized egg eventually develops to become the offspring.
Answer: Option B. ->
False
:
B
Menstruation, also known as a period or monthly, is the regular discharge of blood and inner lining of uterus through the vagina. The first period usually begins between twelve and fifteen years of age, a point in time known as menarche. The onset of menstruation is called menarche while permanent stoppage of menstruation is termed as menopause.
:
B
Menstruation, also known as a period or monthly, is the regular discharge of blood and inner lining of uterus through the vagina. The first period usually begins between twelve and fifteen years of age, a point in time known as menarche. The onset of menstruation is called menarche while permanent stoppage of menstruation is termed as menopause.
Answer: Option A. ->
sexual reproduction
:
A and B
Similar animals which we see around us with noticeable differences in them are the result of genetic variation. Sexual reproduction is based on fusion of haploid gametes which in turn is the source of genetic variations at DNA level. These variations produce these noticeable physical and behavioural differences in the animals of the same species.
:
A and B
Similar animals which we see around us with noticeable differences in them are the result of genetic variation. Sexual reproduction is based on fusion of haploid gametes which in turn is the source of genetic variations at DNA level. These variations produce these noticeable physical and behavioural differences in the animals of the same species.
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