23 During amniocentesis the babys cells are obtained from th

23. During amniocentesis the baby\'s cells are obtained from the ____.

c. uterine wall

24. What is the relationship between photosynthesis and respiration?

a. respiration provides the ATP that powers photosynthesis.
b. photosynthesis provides the pigments that allow respiration to occur.
c. photosynthesis provides the sugars that drive respiration.
d. Respiration provides the enzymes that drive photosynthesis.

25. If you have the DNA sequence ACTG, what sequence of mRNA would be made?
a. AGUC
b. UGAC
c. UCAC
d. TGAC

26. In gametogenesis (meiosis 1) first _____separate(s) then in the 2nd part of gametogenesis (meiosis 2) _____separate(s).

a. chromosomes ; Cytoplasm
b. The cytoplasm ; chromosomes
c. Sister chromatids ; homologous chromosomes
d. homologous chromosomes ; sister chromatids

Solution

Ques-1:

23. During amniocentesis the baby\'s cells are obtained from the ____.

Answer:

The three methods of obtaining fetal cells for prenatal diagnostic testing to unravel any presence of genetic diseases in the fetus:

1. Amniocentesis: in this method, the baby’ cell are obtained to analyze DNA for diagnosis of genetic abnormalities. These cells are obtained from “amniotic fluid” or from the fetal cells of amniotic sac

2. Chorionic villus sampling (CVS)

3. Percutaneous umbilical blood sampling (PUBS)

The main comparison of these three methods for obtaining fetal cells are to analyze fetal karyotypes & number based or structure based chromosomal abnormalities to detect any presence of incidence of genetic disorders

24. What is the relationship between photosynthesis and respiration?

Answer: c. photosynthesis provides the sugars that drive respiration.


25. If you have the DNA sequence ACTG, what sequence of mRNA would be made?
Answer: b. UGAC