Exam (elaborations)
Portage learning final exam Latest Update 2024
- Course
- Institution
Portage learning final exam Latest Update 2024
[Show more]
Content preview
Portage learning final exam LatestUpdate 2024
Question 1
The haploid number in human is ___, while the diploid number is ___.
Answer: 23, 46
Question 2
Which of the following is correct?
Sister chromatids are held together by cohesion.
Chromosome bodies are responsible for the formation of spindle fibers.
In metaphase, centromeres are dispersed throughout the nucleus.
All are correct.
Question 3
True or False: Genetic information can be transferred between bacteria on a
single-stranded RNA molecule called a plasmid.
False.
Question 4
True or False: A chromosomal aberration is an alteration to the chromosome
that results in a change to the total number of chromosomes, deletions or
additions to the chromosome, or even complete rearrangement of
chromosomal segments.
True.
Question 5
Ask for various Exams or Study materials from
(arthurmurphy121@gmail.com)
, True or False: Most scientists believe that the biggest driver of a cancer
phenotype is the ability of cancer cells to avoid apoptosis.
False
Question 6
Explain briefly how the idea of epigenesis and preformation directly
contradict each other.
Preformation postulated that a fertilized egg contained a
miniaturized version of a tiny human, called homunculus. Epigenesis
directly contradicted that theory by stating that a fertilized egg
undergoes a series of developmental events that eventually form a
human.
Question 7
Which of the following statements is correct?
The X chromosome is much larger than the Y chromosome.
The X and Y chromosomes share no homology.
The X chromosome is the driving determinant for sex of an offspring.
Incorrect segregation of X and Y chromosomes (for instance a female with
XXX or X genotype) is always embryonic lethal.
Question 8
The DNA in a ___ is packaged in the head, which is shaped like a capsule. The
___ of the phage pushes the DNA through the host cell membrane much like
a syringe.
Answer: phage, sheath
Question 9
Ask for various Exams or Study materials from
(arthurmurphy121@gmail.com)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Abdinurse. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81113 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now