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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.
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
Comment on the role of placenta as an endocrine gland.
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?
Medically it is advised to all young mothers that breastfeeding is the best for their newborn babies. Do you agree? Give reasons in support of your answer.
Mention any two functions of the human placenta.
Which of the following hormones is not secreted by human placenta?
In the development of the human body, the ectoderm is responsible for the formation of ______.
Which of the following statements are correct with respect to hormones secreted by the placenta?
- The placenta secretes relaxin during the later stage of pregnancy.
- The placenta secretes a high amount of FSH during pregnancy.
- The placenta secretes relaxin during the initial stage of pregnancy.
- The placenta secretes hCG and hPL during pregnancy.
The concentration of which of the following substances will decrease in the maternal blood as it flows from embryo to placenta through the umbilical cord?
The human foetus within the uterus
- Oxygen
- Amino Acids
- Carbon dioxide
- Urea
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 ______
Extra-embryonic membranes provide:
