Mark the following statements as true (T) or false (F) and select the correct option :
A: | Acrocentric chromosome appears J-shaped during anaphase. |
B: | Centromere holds two chromatids together. |
C: | Outer membrane of nucleus is connected with SER only. |
A | B | C | |
1. | T | F | F |
2. | F | T | T |
3. | T | T | F |
4. | F | F | T |
Column I | Column II | |
1. | Lampbrush | Diplotene bivalents chromosomes |
2. | Allosomes | Sex chromosomes |
3. | Submetacentric | L-shaped chromosomes |
4. | Polytene | Oocytes of amphibians chromosomes |
Consider the following statements:
I: | The centromere is termed as the primary constriction of a chromosome |
II: | The secondary constrictions are always constant in their positions |
III: | The chromosomes having a satellite are marker chromosomes |
IV: | The chromosomes bend at the secondary constrictions when they are pulled at anaphase |
Which of the above statements are true?
1. I, II and III
2. I and III
3. II, III and IV
4. I, II, III and IV