High School
SAT
ACT
University
MCAT
LSAT
DAT

Practice: Meiosis (Telomeres)

Related Topics

Wize University Biology Textbook > DNA Replication & Repair

Telomerase

3 Activities

Wize University Biology Textbook > Meiosis

Meiosis II

6 Activities

Wize University Biology Textbook > DNA Replication & Repair

DNA Structure and Sequence

3 Activities

A hedgehog has a diploid number of 48 chromosomes. How many telomeres would you find in a a hegdehog gamete at the beginning of telophase II?
More Telomerase Questions:
DNA Replication
Which of the following proteins can extend the 5' end of a DNA strand?
1. DNA polymerase III
2. Ligase
Which of the following functions as an RNA-protein complex?
Ribosomes
snRNPs
DNA Replication
Which of the following proteins can extend the 5' end of a DNA strand?
1. DNA polymerase III
2. Ligase
Telomeres
A human cell as 23 pairs of chromosomes. What is the total number of telomeres found at prophase of mitosis?
If you block the activity of DNA polymerase III, which of the following would be affected?
The ends of chromosomes are elongated by telomerase. Which of the following proteins is also involved in ensuring the inheritance of sameness at the ends of chromosomes?
i. DNA polymerase III
ii. Primase
A cancer cell divides rapidly and never dies. Which of the following would explain the immortality of the cancer cell?
Which of the following would not be classified as a phosphodiesterase?
i. Primase
ii. Topoisomerase
A flowering plant has 20 pairs of chromosomes. How many telomeres would a gametophyte somatic cell have at prophase of mitosis?
From Term Test 2 Prep: What does the process of non-homologous end joining accomplish?
Which of the following statements is TRUE regarding telomeres?
They get shorter with each replication cycle in somatic cells
Their length is maintained in all cells by the enzyme telomerase
More Meiosis II Questions:
At the end of meiosis the number of chromosome in daughter cells is ___ compared to the parent cell.
Meisois
At the end of meiosis II you get four daughter cells. These daughter cells are
haploid
Crossing over
Crossing over occurs in which phase of meiosis?
Complete the following table:
Which of the following is FALSE regarding meiosis prophase II? Choose all that apply
Which of the following describes a newly fertilized human zygote?
Meiosis practice problem 1
What are the genotypes of the possible daughter cells that would result from the double crossover shown below?
Which of the following is different between mitosis metaphase and meiosis metaphase II
Which of the following describes a cell at the end of prophase II?
During what stage do homologous chromosomes separate?
Which of the following describes the differences between mitosis and meiosis?
1. Mitosis occurs in autosomal cells while meiosis in gamete cells
2. Mitosis involves undergoing cell division twice
Practice: Meiosis
Place the following stages of meiosis in order in which they occur.
Which of the following is present in meiosis, but not mitosis?
Capsella bursa-pastoria and Capsella grandiflora are two very closely related species. Flow cytometry analysis shows that somatic cells in G1 phase of C. bursa-pastoria cells contain a 0.80 pg of DNA, while C. grandiflora has 0.44 pg.
What does this suggest about the ploidy of these two species?
What would the C-value of these two species be?
Practice: Meiosis (Non-disjunction vs. Mis-division)
Julia has triple X syndrome, meaning she has three X chromosomes. On one X she has an SNP that she shares with her paternal grandmother, one has an SNP that she shares with her maternal grandfather. When did this aneuploidy happen to cause Julia to have this syndrome?
Meiosis I in the mother
Meiosis I in the father
What are the major sources of genetic variation resulting from sexual reproduction?
i. Recombination during prophase I
ii. Recombination during prophase II
Two-toed sloths have a chromosome number 2n=50. How many chromatids would be found at the start of prophase II, and immediately at the end of meiosis II?
If you overheard someone in your biology class say that “plants are haploid and make gametes by mitosis, while animals are diploid and make gametes by meiosis”, would you agree or disagree with this statement, and why?
Which of the following characteristics are the same in both meiosis II and mitosis?
Imagine an alien from a distant planet that has 70 pairs of chromosomes. This alien has a mother with a serious mutation on chromosome 67. This alien, however, does not carry this deleterious allele on chromosome 67. Which of the following best describes how this chromosome was able to “repair itself”?
Anna has an extra chromosome 12. Of her three chromosome 12’s she shares an SNP
that is found on one of her mother’s chromosome 12’s. If Anna’s aneuploidy is due to a
single mistake in meiosis, which of the following steps of meiosis did the mistake occur?
What are the major sources of genetic variation resulting from sexual reproduction?
i. Recombination during prophase I
ii. Recombination during prophase II
Two-toed sloths have a chromosome number 2n=50. How many chromatids would be
found at the start of prophase II, and immediately at the end of meiosis II?
If you overheard someone in your biology class say that “plants are haploid and make
gametes by mitosis, while animals are diploid and make gametes by meiosis”, would you
agree or disagree with this statement, and why?
An alien from a distant planet has 70 pairs of chromosomes. How many individual
chromatids would a single cell undergoing meiosis have at metaphase II?
Which of the following characteristics are the same in both meiosis II and mitosis?
Individuals with Down’s syndrome have a trisomy of chromosome 21 that arose from a single error in meiosis. Imagine a child, Bella, who has parents with normal karyotypes. Only 1 of Bella’s chromosomes carries the same SNP as is found in her father. Which of the follow stages of meiosis could this error have occurred?
Meiosis I in the mother
Meiosis I in the father
Practice: Meiosis (n and C-values)
The frog species Xenopus tropicalis has 10 chromosomes and this species is viable with 4 copies of its genome. An individual with four copies of its genome would have what ploidy and what C-value coefficents at anaphase II of meiosis?
What are the two phases of meiosis that are the source of most of the variation in the four resulting daughter cells?
Which of the following is false regarding meiosis prophase II?
Which of the following is different between mitosis metaphase and meiosis metaphase II
Which of the following describes a cell at the end of prophase II?
What is the difference between mitosis metaphase and meiosis metaphase II?
Practice: Meiosis II
A haploid set of duplicated chromosomes is pulled apart by microtubules into individual sister chromatids. What process is most likely occurring?
An alien from a distant planet has 70 pairs of chromosomes. How many individual
chromatids would a single cell undergoing meiosis have at metaphase II?
Which of the following is present in meiosis, but not mitosis?
More DNA Structure and Sequence Questions:
What is the base sequence of the DNA strand that would be complimentary to the following strand of DNA – 3’ TAGCTACGTTAT 5’?
The genome of the bacterium Mycobacterium tuberculosis contains 65.6% GC base pairs. What percentage of the genome is made up of purines?
A nucleic acid was analyzed and found to contain 32% A, 18% G, 17% C, and 33% T. The nucleic acid must be:
i. Single-stranded
ii. Double-stranded
Practice: Denaturation
You are analyzing two separate DNA sequences that are approximately equal in length. You find that Sequence 1 has a G-C content of 45%. Sequence 2 has a G-C content of 52%. Which DNA sequence do you expect to have a higher denaturation temperature? Why?
The percent of cytosine in a double-stranded DNA is 21. What is the percent of thymine in that DNA?
What is the base sequence of the DNA strand that would be complimentary to the following single-stranded DNA molecule? Write it in the 5’ to 3’ direction.
5'-GGATCTGCTATG-3'
Consider the 5' and 3' designations:
i. They must be on the same ends for two DNA strands in a helix (parallel)
ii. They must be on opposite ends for two DNA strands in a helix (antiparallel)
The genome of the bacterium Mycobacterium tuberculosis contains 65.6% GC base pairs. What percentage of the genome is made up of purines?
The percent of cytosine in a single-stranded DNA is 21. What is the percent of thymine in that DNA?
For double stranded DNA, consider the following ratios:
I. A/G
II. C/T
A nucleic acid was analyzed and found to contain 32% A, 18% G, 17% C, and 33% T. The nucleic acid must be:
i. Single-stranded
ii. Double-stranded
You collect a double stranded DNA sample that happens to be 30% adenine. What percent will be cytosine?
Practice: 32P Culture
You are growing a cell culture in radioactive Phosphorus (32P) what molecules will be radioactive?
Select all that apply, answer may or may not involve multiple chapters.
This type of bond holds together complementary strand of DNA. Answer is one word
Nucleotides are joined together to form long chains though a ___ reaction to form a ____ bond
Practice: DNA
The two strands of the DNA helix are held together by _____ bonds while the sugar-phosphate backbone is linked by _______ bonds.
The 5' end of the DNA helix ends with ______ while the 3' end of the helix ends with ______.
Transcription
Label the following statements as true or false
A. When RNA polymerase transcribes DNA in to RNA, the RNA is an exact copy of the DNA stand being transcribed.
B. Uracil complements with adenine in RNA.
DNA structure
Label the following statements as True or False
A. The 3' end of a DNA strand ends in an OH group
B. If the percentage of pyrimidines in a DNA strand is 40% then purines will occur at 60%
You are growing a population of bacteria in normal bacterial culture. You then decide to introduce adenines into the cells that are covalently bonded to a fluorescent tag. After 2 rounds of replication in these cells, where would you find the fluorescent signal?
Which of the following is not a component of RNA?
Which of the following stabilizes the DNA helix?
To generate a DNA polymer, where is the bond created?
What DNA base is replaced by uracil in RNA?
Which of the following is false regarding DNA?
Which of the following is incorrect regarding DNA?
What DNA nucleotide does uracil replace in RNA?
What nucleotide pairs with cytosine in a DNA helix?
What makes up the backbone of a DNA strand?
Which of the following is incorrect regarding DNA?
Practice: Denaturation
You are analyzing two separate DNA sequences that are approximately equal in length. You find that Sequence 1 has a G-C content of 45%. Sequence 2 has a G-C content of 52%. Which DNA sequence do you expect to have a higher denaturation temperature? Why?
You are analyzing the genome of a certain organism and find that it is made up of 34% thymine bases. Therefore, you reason there must be
16
% guanine bases.
Nucleic Acid -BIOl200
You are analyzing a double stranded DNA sequence that is 80 base pairs long. The DNA has 45 thymine (T) bases. How many cytosine (C) bases are present in this DNA structure?
Use the codon dictionary below to complete the following table. Assume that reading is from left to right and that the columns represent transcriptional and translational alignments.
What is the base sequence of the DNA strand that would be complimentary to the following strand of DNA – 3’ TAGCTACGTTAT 5’?
The percent of cytosine in a double-stranded DNA is 21. What is the percent of thymine in that DNA?
Which pairings of nitrogenous bases are correct?
i. Adenine and uracil
ii. Adenine and guanine
Practice: Nucleic Acid
A nucleic acid was analyzed and found to contain 32% A, 18% G, 17% C, and 33% T. The nucleic acid must be:
i. Single-stranded
ii. Double-stranded
Practice: Nitrogenous Bases
Which pairings of nitrogenous bases are wrong?
i. Adenine and uracil
ii. Adenine and guanine
Practice: Complimentary Strand
What is the base sequence of the DNA strand that would be complimentary to the following single-stranded DNA molecule? Write it in the 5’ to 3’ direction.
5'-TCATTGCGGA-3'
Strands that make up DNA are antiparallel, this means:
DNA replication in S phase can be observed using nucleotides that have been tagged with a radioactive or fluorescent label. Why would you need to be careful when choosing which nucleotide to label?
Write a point form essay outline for the following prompt:
The central dogma of molecular biology is that DNA is transcribed to RNA, which is translated into protein. As such, when we think of DNA, we often picture transcriptionally active euchromatin. However, approx. 10% of interphase DNA in eukaryotes is organized as transcriptionally inactive heterochromatin. Explain the importance of heterochromatin.
Thesis statement: