6. In one sentence, explain why linear chromosomes get shorter with each cycle o

Question

6. In one sentence, explain why linear chromosomes get shorter with each cycle of replication (2 points)

.....................................................................................................................

7. In one brief sentence explain why prokaryote chromosomes do not need telomere structures (1 point)

............................................................................................................

8. Fill in the correct words for the following paragraph: (6 points)

_____________ is a special type of cell division done by germ cells in the gonads of organisms to create the haploid ______________. When these cells fuse (called fertilization), they form a diploid cell called a __________. This type of cell division is considered “reductive”, since in Prophase I, the __________________________ are paired, and then pulled apart to the daughter cells during ______________ I, leaving each daughter cell with one of each chromosome. The second round of this specialized cell division is like mitosis, in which the ___________________ of each chromosome are separated into the daughter cells.

...............................................................................................................

9. Label the image below with the letters associated with the following: (4 points)

A. Centromere (Labeled for you as an example)

B. Chiasma

C. Sister chromatids

D. Homologous chromosomes

E. Non-sister chromatids

..........................................................................................

10. Fill in the correct words for the following sentences: (3 points)

The law of inheritance that states that each cell at the end of meiosis will have one copy of each chromosome is the Law of _____________________. When genes are on the same chromosome they are considered to be ____________. Genes that are not linked will be segregated independently of one another, as stated in the Law of ______________________________.

Explanation / Answer

6) The ends of linear chromosomes are called as telomeres. They are repetetive sequences that code for no particular gene. Telomeres get short during each cycle of replication due to the activity of enzyme telomerase. Therefore, linear chromosomes get shorter during each cycle of replication because of shortening of telomeres by telomerases.

Related Questions

Navigate

• Browse (All)
• Browse 6
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.