247 Answered Questions for the topic genetics
Complete dominance = If a Red (RR) and White flower (rr) were crossbred, resulting in 100% Rr, what phenotype would been seen according to the rules of COMPLETE dominance?
What data does a sequencing chromatogram give??
For my lab we had to change the sequencing of Erv26 depending on our primer. We change the amino acid T69 from AAA to AUA. This is one of our figures but i am unsure how to interpret the data.
Can someone help me analyze the results of this experiment
Restriction Enzyme Digest- Gel Extraction ResultsInsert- BamHI and BglIIVector- BamHI and KpnIWESTERN BLOT
A 900 bp open-reading frame (ORF) that begins with an AUG start codon and ends with a stop codon would encode a polypeptide containing __________ amino acids.
A 900 bp open-reading frame (ORF) that begins with an AUG start codon and ends with a stop codon would encode a polypeptide containing __________ amino acids.Why is the answer 299?
42. Many tumor cells are able to divide uncontrollably in cell culture in the laboratory. Some of these cell lines have genomes with a mutant tumor suppressor gene...
1) Many tumor cells are able to divide uncontrollably in cell culture in the laboratory. Some of these cell lines have genomes with a mutant tumor suppressor gene. By adding a wild-type copy of... more
Why do arbuscular mycorrhizal fungi retain active circadian clock genes?
Symbiotic arbuscular mycorrhizal fungi colonize the root systems of perhaps 80% of modern-day plant families, and are responsible for assisting with intake of nutrients required for plant growth... more
Two-Factor Cross: In pea plants, the "tall" allele is dominant over the short one, and yellow is dominant over green. Cross two plants that are hybrid for both traits. Show the Punnet Square.
I don't understand what it means by, "hybrid". Any help is appreciated. Thanks.
Biology Genetics - Inheritance Question
assume that ischemic heart disease is conveyed by homozygous recessive alleles, hh, at a single locus. Individuals with at least one copy of the dominant allele H have normal blood vessels. Dwayne... more
BIOLOGY DNA QUESTION
for the following mRNA with the seq 5' AUGCGGUACAGCUUAGC 3' what is the originating genomic DNA template strand? I said GCUAAGCUGUACGCUA. is this correct or should the U be replaced with T?Thank you. more
Number of nucleotides in 300 amino acids
A protein is 300 amino acids long. Which of the following could be the number of nucleotides in the section of DNA that codes for this protein? (Remember: DNA is double-stranded.)I know the answer... more
Explain mechanism that could cause methylated histone proteins to pack tightly together while causing acetylated histones to pack together very loosely
Can you propose a potential explanation for a mechanism that could cause methylated histone proteins to pack tightly together, inhibiting gene transcription, while causing acetylated histones to... more
If tryptophan were to serve to decrease gene expression, how could it interact with a repressor, and an activator, respectively, to mediate this decrease in trp operon expression?
In this scenario, which of these two transcription factors would be inherently capable of binding the DNA operator, and which needs help from tryptophan?
Why do a Punnett square and dominance/recessiveness not make any sense for bacteria?
Gene therapy and mutation question
Dominant mutations can be categorized according to whether they increase or decrease the overall activity of a gene or gene product. Although a loss-of-function mutation (a mutation that... more
Mendel’s principle of independent assortment says that the genes controlling different traits are inherited independently of one another. Today, we know that is ONLY true when
a mutation causes abnormal cell division.the traits are both recessive.the traits are located on the same chromosome.the traits are located on different chromosomes.the trait occurs on the X or Y... more
health issue in pakistan
a lot of health issue in Pakistan silent killer called hypertension, rate of hypertension increase day by day which are the root of cardiovascular disease how we control hypertension?
How does the polymerase protein know which gene to express?
I am not asking where the DNA or RNA polymerase starts to transcribe a gene. I want to know how does the polymerase know WHICH of thousands of genes on multiple chromsomes to pick at any one... more
What DNA does a self-fertile plant's seedling have?
Some plants are said to be `self-fertile`. An example is `Prunus tomentosa`. Assuming that no cross-pollination happened with other plants, if a self-fertile plant such as `prunus tomentosa`... more
Horizontal Gene Transfer?
I understand the different ways bacteria can undergo horizontal gene transfer (transformation, transduction (phages), conjugation (plasmids)). Is there an experimental method to tell how a... more
Why is mRNA needed in the Protein translation?
The original question was to predict the basic requirements for information storage. Then the discussion moved to why is it necessary to include mRNA in the protein translation process. Why can't... more
What are the different ways an exon gets spliced?
Exons are produced by more than one mechanism, e.g. splicing out introns after transcription, if I remember correctly. Please list all mechanisms.
Why are some genes dominant over others? What is the mechanism behind it?
If I have a brown eye gene which encodes the protein that is responsible for the brown color and have a blue eye gene as well, what is the reason that my eye color is brown? How does one gene... more