A 1.0-kb DNA fragment from the 5' end of the mouse gene is examined by DNA footprint protection analysis. Two samples are end-labeled with 32P, and one of the two is mixed with TFIIB, TFIID, and RNA polymerase II. Both samples are exposed to DNase I. The results are displayed below. The DNA exposed to proteins is run in the right-hand lane of the gel. Control DNA is in the left-hand lane.

Required:
What length of DNA is bound by the transcriptional proteins?

Answer:

Explanation:

Proteins, such as RNA (ribonucleic acid) polymerase, were loaded into lane 2. TFIIB and TFIID are two forms of TFII. These proteins attach to the fragment of DNA. Furthermore, these proteins shield DNA from the DNase enzyme, which may trigger DNA to split. As a result of the above findings, we may conclude that the inserting proteins(RNA polymerase, TFIID and TR 8 proteins) cover the area between 500 and 800 bp (base pair) in the DNase I footprinting experiment.

As a consequence, the length duration is 300bp since the promoter area is about 500-800bp and is not digested by DNase after incubation of inserting proteins.

!!FOR PLANT SYSTEMS!!
Given the loss of farming jobs projected in the near future, distinguish at least two factors in a decision one might make to enter the field.

Ashton is a crime scene investigator. He ensures that all the evidence gathered at the scene is properly handled and labeled. What is Ashton protecting?
Ashton ensures that the (blank) the documentation of who possesses evidence at all times, is protected by properly handling and labeling evidence.

Which of the following is an example of erosion?

Which type of plant lives the longest?
a.annual
b.biennial
c.perennial
d.none of the above

Signal Sequences: 1)A signal sequence is made of: a.Nucleotides b.Amino acids c.Lipids d.Carbohydrates 2)All protein synthesis starts on ribosomes that are located in the _________________. 3)If a molecule lacks a signal sequence it will end up in the ______________ 4)Proteins with a nuclear localization sequence (NLS) are generated on ribosomes located in the ___________________. 5)Proteins with a mitochondrial signal sequence are generated in ribosomes located in the _________________.

The following statements refer to a comparison of reproduction in ferns vs. flowering plants. Indicate whether each statement is true or false by writing true or false in each blank. true Both ferns and flowering plants produce spores at some point in their life cycles. false Only ferns have a gametophyte as part of their life cycle. Only flowering plants produce pollen grains. true Both a tree and a large fern plant are diploid sporophytes.

A bacteria structure involved in motility.

Different alleles produce different characteristics. True False

Friction reduces efficiency because energy is lost as ____.
a.
work
c.
gravity
b.
heat
d.
thrust


Please select the best answer from the choices provided

A
B
C
D

24. all of the following are function of sER Except ?

A. Synthesis of lipid

B. Carbohydrate Metabolism

C. Detoxification of drug and poisons

D. Modification of protein​

Why are lipids and proteins free to move laterally in membranes?
A) The interior of the membrane is filled with liquid water.
B) There are no covalent bonds between lipid and protein in the membrane.
C) Hydrophilic portions of the lipids are in the interior of the membrane.
D) There are only weak hydrophobic interactions in the interior of the membrane.
E) Molecules such as cellulose can pull them in various directions.

what is the answer? for this

If an organism has a diploid number of 54, how many chromosomes will be in each of its gametes?
a. 54
b. 52
c. 27
d. 104
e. 108

What is a population bottleneck?

____________ are made of a series of paired statements that describe physical characteristics of different organisms.

DNA sequence that codes for glycine​

Help asap plsss no link or websites I think brainley has a bot problem

An airplane flies with a constant speed of 760 km/h. How far can it travel in 2 1/2 hours? Distance = ​

Which of the following is an example of the endocrine system maintaining homeostasis? (3 points)

-Detecting a pain stimulus and sending a signal to the spinal cord to perform an automatic response
-Discharging an excessive amount of hormones in the blood and not sending a signal to stop production
-Sending a message to the pituitary gland to start producing a hormone when the levels in the body are too low
-Using sense organs to get information about the outside world and direct an appropriate body response release

A farmer grows wheat near a river. He frequently uses
fertilizer on his fields, and when he waters the fields,
excess water runs off into the river.
What should the farmer be most careful to monitor to determine his farm's
impact on water quality?
A. Type of fish in the river
B. Amount of water in the farm's soil
C. pH of rainwater falling on the farm
D. Level of nitrates in runoff water

Scientists analyzed data collected over a period of years in a game reserve in South Africa to test the hypothesis that competition with lions limits the abundance of leopards in the same community. The game reserve encompasses a variety of habitats, from open grassland to wooded areas around rivers and streams. It contains most of the indigenous mammal species and an adequate availability of their prey. For the most part, the leopards and lions show similar habitat preferences in the reserve.

The mass of the average lion is about three times that of the average leopard. The scientists analyzed several factors that might influence the abundance of each population, including the sizes of the animals preyed on by each species

Size of Prey Animal Percent of Leopards’ Prey (±2SEx¯) Percent of Lions’ Prey (±2SEx¯)
Small 34 ± 2 3 ± 1
Medium 63 ± 3 23 ± 2
Large 3 ± 1 36 ± 4
Very large 0 38 ± 3

Because competition with lions might affect the population size of the leopards, the scientists also analyzed data on the lion and leopard population sizes in the game reserve (Figure 1).

Required:
Describe what scientists mean when they refer to an ecological community such as that shared by the leopards and lions.

From the list of activities below, select those that can increase your carbon footprint.

installing solar panels on your home
driving a car that uses gasoline
keeping non-LED lights on in your home all night
purchasing foods processed in a factory
planting a garden

Hydrogen bonds are formed as a result of which of the following? A. Ionic bonds b. Nonpolar covalent bonds c. Polar covalent bonds d. None of these are correct

The moon's relative motion causes
A)
ocean tides.
B)
wind currents.
the phases of the Moon.
D)
the rotation of the Moon.

A solid is that form of matter that possesses the following
characteristics___.
a Particles vibrate around fixed axes
b Definite shape
C Definite volume
d All of the above

critically discuss the transport mechanisms across the membrane​

Are the energy resources used at school renewable or nonrenewable

The aorta carries blood away from the heart and eventually branches into a large number of capillaries that distribute the blood to various body organs. If for an average person, the aorta has a radius of 1.2 cm and blood travels through it at a speed of 42 cm/s and the capillaries have an average radius of 5.0 10-4 cm and blood travels through them at a speed of 0.005 cm/s, determine the approximate number of capillaries in the human body.

Please help me ASAP thank you

What are the similarities between the coastal oceans and coral reefs

Protein phosphatase 1 (PP1) catalyzes a reaction which yields products that regulate cell division; consequently, PP1 is a possible drug target to treat certain types of cancers. The PP1 enzyme cata- lyzes the hydrolysis of a phosphate group from myelin basic protein (MBP). The reaction is shown below:
PP1 MBP-phosphate-→ MBP+P,
The activity of PP1 was measured in the presence and absence of the inhibitor phosphatidic acid (PA). The concentration of PA was 300 nM. vo without PA vo with PA released . (mg/mL) mL"1 . min1) mL-1 . min-1) 0.00381 0.00620 0.00931 0.0140 0.010 0.0209 0.0335 0.0419 0.0838 0.015 0.025 0.050
(a) Use the data provided to construct a Lineweaver-Burk plot for the PP1 enzyme in the presence and absence of PA. What kind of inhibitor is PA?
(b) Report the KM and Vmax values for PP1 in the presence and absence of the inhibitor.