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Questions
Assertion: Functional ADA cDNA genes must be inserted in the lymphocytes at the early embryonic stage.
Reason: Cells in the embryonic stage are mortal, differentiated and easy to manipulate.
Assertion: Functional ADA cDNA genes must be inserted in the lymphocytes at the early embryonic stage in gene therapy for ADA deficiency.
Reason: Cells in the embryonic stage are immortal, differentiated and easy to manipulate.
Options
Both A and R are true and R is the correct explanation of A.
Both A and R are true and R is not the correct explanation of A.
A is true but R is false.
A is False but R is true.
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Solution
A is true but R is false.
Explanation:
A is true, but R is false. R can be corrected as embryonic cells are immortal, undifferentiated, and easy to control. Embryonic cells are pluripotent, meaning they can develop into any somatic cell type.
RELATED QUESTIONS
During the reproductive cycle of a human female, when, where and how does a placenta develop? What is the function of placenta during pregnancy and embryo development?
Arrange the following hormones in sequence of their secretion in a pregnant woman.
hCG, LH, FSH, Relaxin
Gonads develop from embryonic ______.
Urine test during pregnancy determines the presence of ______.
In the event of pregnancy, the corpus luteum persists under the influence of ______.
Relaxin is the hormone secreted by the placenta.
To answer the question, study the graphs below for Subjects 1 and 2 showing different levels of certain hormones.
Subject 2 has a higher level of hormone B, which is ______
Read the following and answer from given below:
Cleavage is the series of rapid mitotic divisions in the zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. An embryo with 64 blastomeres is known as a blastocyst and has a blastocoel cavity. Blastocyst gets implanted in the uterine wall and leads to pregnancy.
The correct sequence of various structures formed during embryonic development is ______
During embryogenesis in dicots, the zygote divides into a basal cell and a terminal cell. The basal cell divides repeatedly to produce a structure called suspensor. Carefully observe the image given below and describe the function of cell – A and cell – B of the suspensor.
Zygote
Assertion A: Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.
Reason R: Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby.
In the light of the above statements, choose the most appropriate answer from the options given below:
