The rest of the quiz questions will build off of the scenario below.
Gordita and Quesarito are two maternal gene proteins that establish the anterior/posterior axis of the developing X. mutans. Gordita levels are highest at the anterior of the animal while Quesarito is highest in the posterior; both proteins exist as a gradient.
Just based on this information, which of the following toolkit genes would be most likely to be expressed in the middle region of the developing X. mutans?
gene N: Gordita promotes expression while Quesarito represses expression
gene F: Quesarito represses expression
gene C: low levels of both Quesarito and Gordita promote transcription
gene A: Quesarito promotes while Gordita represses transcription
Ans: gene C: low levels of both Quesarito and Gordita promote transcription
Explanation: As protein level is found in gradient, in the middle region protein level of both genes is low. So, low level of both Quesarito and Gordita promote transcription.
The rest of the quiz questions will build off of the scenario below. Gordita and Quesarito...
1. What is the difference between a parasegment and segment in Drosophila development? a) Segments correspond to the anatomical divisions seen in larvae and adults, whereas parasegments are subdivisions of the embryo that correspond to regions or domains of gene expression. b) Parasegments correspond to the anatomical divisions seen in larvae and adults, whereas segments are subdivisions of the embryo that correspond to regions or domains of gene expression. 2. Which of the following statements about vertebrate Hox genes is...
BOTH QUESTIONS PLEASE.
Regulation of pattern formation during development depends upon altered gene expression. The majority of factors needed to generate these patterns regulate gene expression by: Promoting alternative splicing Changing phosphorylation of target proteins Altering mRNA stability Altering transcription of target genes Promoting protein degradation Question 4 3 pts Bicoid is important for generation of the anterior-posterior axis by regulating expression of multiple genes, including hunchback and caudal. How does Bicoid regulate expression of these two genes? Bicoid induces...
please answer all 3 questions asap
Question 1 3 pts Some of the genes important in embryonic development are dependent upon the maternal genotype rather than the genotype of the embryo. How does this maternal information get transmitted to the embryo? During egg development, pieces of maternal DNA are moved into the embryo to temporarily allow transcription and translation of maternal DNA During egg development, proteins transcribed and translated in maternal nurse cells are moved into the embryo During egg...
Developmental Biology Help! Please answer all the questions 1) We discussed the fact that each stripe expression pattern is affected by the enhancer region that is utilized. Knowing that the maternal genes and the gap genes can both contribute to the pair-rule genes, and that in many cases multiple stripes may be contained in one area of GAP, how does the embryo have definition of stripes if all of these transcription factors can be within the same cell A it...
For Questions 4-18, consider the mutations described in the left-hand column below. Identify whether the Lac operon will be ON or OFF in each of the environments listed across the top. The expression of the normal (wild type) operon is given. Note that "ON" and "OFF" refer to whether the operon is expressed at high levels (ON) or basal//low/no levels (OFF). (Hint: mutations render the indicated site inactive while leaving the remaining part of the operon or protein functional.) Note...
PLEASE ANSWER ALL THE QUESTIONS: 1.What is true of tRNA (transfer RNA)? A they contain an anti-codon B they carry an amino acid C they can interpret the genetic code D all of these are true 2. How can transcription factors bound to distant enhancers influence gene expression? A the transcription factors can slide along the DNA until they get to the gene's promoter B DNA can loop, bringing these proteins into contact with the gene's promoter C both of...
2. A dominant allele H reduces the number of body bristles that Drosophila flies have, giving rise to a “hairless” phenotype. In the homozygous condition, H is lethal. An independently assorting dominant allele S has no effect on bristle number except in the presence of H, in which case a single dose of S suppresses the hairless phenotype, thus restoring the "hairy" phenotype. However, S also is lethal in the homozygous (S/S) condition. What ratio of hairy to hairless flies...
Microbiology study guide questions. Please Help!
s. which of the following statements about water activity is not true? a) many fungi can tolerate aw levels of 07-0.8 b) many microorganisms grow well at an aw of 0.98 e sear water has an aw of 0.98 e-xerephiles thrive in dry conditions DNA typically becomes disordered below an a of o.90 Which of the following descriptions about ribosome structure is not true? a) 80s is the size of the intact functional ribosome...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....