
Concept explainers
A.
To explain: The consequences that would arise if a eukaryotic chromosome contained only one origin of replication at
- (i) the exact center of the chromosome
- (ii) at one end of the chromosome
Introduction: Both eukaryotes and prokaryotes have their DNA packed in chromosomes. Eukaryotic chromosomes are tightly packed and are linear. Replication begins at certain locations on DNA known as origins of replication. Eukaryotes have end-replication problem, as their ends have telomeres and thus the DNA at the ends of chromosomes are not fully copied at each round of replication. The single-stranded overhangs produced form protective loops.
B.
To explain: The consequences that would arise if a eukaryotic chromosome lacked one or both telomeres.
Introduction: Both eukaryotes and prokaryotes have their DNA packed in chromosomes. Eukaryotic chromosomes are tightly packed and are linear. Replication begins at certain locations on DNA known as origins of replication. Eukaryotes have end-replication problem, as their ends have telomeres and thus the DNA at the ends of chromosomes are not fully copied at each round of replication. The single-stranded overhangs produced form protective loops.
C.
To explain: The consequences that would arise if a eukaryotic chromosome had no centromere.
Introduction: Both eukaryotes and prokaryotes have their DNA packed in chromosomes. Eukaryotic chromosomes are tightly packed and are linear. Replication begins at certain locations on DNA known as origins of replication. Eukaryotes have end-replication problem, as their ends have telomeres and thus the DNA at the ends of chromosomes are not fully copied at each round of replication. The single-stranded overhangs produced form protective loops.

Want to see the full answer?
Check out a sample textbook solution
Chapter 6 Solutions
Essential Cell Biology (fifth Edition)
- Describe the principle of homeostasis.arrow_forwardExplain how the hormones of the glands listed below travel around the body to target organs and tissues : Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_forwardWhat are the functions of the hormones produced in the glands listed below: Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_forward
- Describe the hormones produced in the glands listed below: Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_forwardPlease help me calculate drug dosage from the following information: Patient weight: 35 pounds, so 15.9 kilograms (got this by dividing 35 pounds by 2.2 kilograms) Drug dose: 0.05mg/kg Drug concentration: 2mg/mLarrow_forwardA 25-year-old woman presents to the emergency department with a 2-day history of fever, chills, severe headache, and confusion. She recently returned from a trip to sub-Saharan Africa, where she did not take malaria prophylaxis. On examination, she is febrile (39.8°C/103.6°F) and hypotensive. Laboratory studies reveal hemoglobin of 8.0 g/dL, platelet count of 50,000/μL, and evidence of hemoglobinuria. A peripheral blood smear shows ring forms and banana-shaped gametocytes. Which of the following Plasmodium species is most likely responsible for her severe symptoms? A. Plasmodium vivax B. Plasmodium ovale C. Plasmodium malariae D. Plasmodium falciparumarrow_forward
- please fill in missing parts , thank youarrow_forwardplease draw in the answers, thank youarrow_forwarda. On this first grid, assume that the DNA and RNA templates are read left to right. DNA DNA mRNA codon tRNA anticodon polypeptide _strand strand C с A T G A U G C A TRP b. Now do this AGAIN assuming that the DNA and RNA templates are read right to left. DNA DNA strand strand C mRNA codon tRNA anticodon polypeptide 0 A T G A U G с A TRParrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education





