Answers
Answer:
negative
Explanation:
Related Questions
A geneticist finds that a strain of bacteria to produces a non-functional sigma factor. Which among the following steps in transcription would most likely be first affected?
A.Assembly of RNAP onto the DNA strand
B.Identification and binding of RNAP on to the promoter sequence
C.Conversion of open initiation complex to closed initiation complex
D.Synthesis of RNA after the formation of open initiation complex
Answers
Answer:
The correct answer is - B. Identification and binding of RNAP onto the promoter sequence.
Explanation:
Bacterial RNA polymerases have subunits known as Sigma factors responsible for the identification and specificity of promoter binding of RNAP and regulate the efficiency of RNA synthesis during transcription is initiated.
These bacteria producing the nonfunctional subunits of RNA polymerase or sigma factor will be unable to identify and tightly bind to promoter elements that are RNAP.
Which of the following statements best represents the theory of pangenesis developed by Hippocrates?
a. Pregnancy is a spontaneous event, and the characteristics of the offspring are determined by the gods.
b. Particles called pangenes, which originate in each part of an organism's body, collect in the sperm or eggs and are passed on to the next generation.
c. Offspring inherit the traits of either the mother or the father, but not both.
d. Fertilization of plants is dependent on an animal.
e. Heritable traits are influenced by the environment and the behaviors of the parents.
Answers
Answer:
b. Particles called pangenes, which originate in each part of an organism's body, collect in the sperm or eggs and are passed on to the next generation.
Explanation:
Particles called pangenes, which originate in each part of an organism's body, collect in the sperm or eggs and are passed on to the next generation. The belief of Hippocrates states that "the semen was derived from the whole body." which means the whole body contributes the formation and creation of semen that is responsible for the fertilizing the female's egg with its sperm.
Protein channels allow
molecules in and out of
the cell without using
energy. Therefore, they
are an example of which
type of transport?
Answers
Answer:
I think that it is an example of a passive transport
Explanation:
Salt minerals formed by which method
Answers
Answer:
solar, evaporation, and rock mining.
Explanation:
. Plants prepare their food on their............(leaves\roots)
Answers
This mechanism is called photosynthesis
Normal blood clotting requires an adequate intake of vitamin K. Vitamin K is needed by the liver for
synthesis of prothrombin and other factors.
O a.
False
b. True
Clear my choice
Answers
What would most likely happen if the number of shrimp decreased?
A. The plankton population would increase.
B. The salmon population would increase.
C. The salmon population would not change.
D. The plankton population would not change.
Answers
Answer:
A.
Explanation:
Shrimp eat plankton, so, if the number of shrimp decrease, the plankton will increase. hope I helped, and God bless you!
In this excerpt, a reader can conclude that Lizzie is playful based primarily on her
Answers
Answer:
based on Lizzie's words
How are growth and development dinstinct from each other
Answers
Answer:
Growth is a physical change in ones body size that can be easily observed.
Development is the ability to do things complex, challenging, and difficult.
Suppose that you close a window because you notice that rain is falling. Your action in closing the window is a(n)
A. involuntary reaction.
B. depressant.
C. stimulus.
D. response.
Answers
Answer:
D. Response
Explanation:
Basically, You Are Coordinating What Is Happening Which Triggers The Brain For A Response.
Answer:
D.
Explanation:
You are responding to the rain by closing the window.
- it is not an involuntary action because that is something that doesn't require thinking such as breathing and blinking.
- it is not a depressant because that is something that reduces functional activity - so affects the body.
- it is not a stimulus because a stimulus is a change or signal in the environment that can make an organism react. So, in this case the rain would be the stimulus.
Which of the following groups includes a protozoan that is transmitted sexually?
Chromalveolata
Excavata
Amoebazoa
Archaeplasteda
Rhizaria
Which of the following is a distinction between Ascomycetes and Basidiomycetes?
Ascomycetes form a sac around the sexual spores.
Ascomycetes have zygotes.
Ascomycetes release basidiospores.
Basidiomycetes form a shell around the sexual spores.
Basidiomycetes release conidiospores.
Which of the following is a specialized structure that would contain food ingested by phagocytosis?
Saprozoic
Cytostome
Cytoproct
Oral groove
Holozoic
Which part of a mushroom would be eaten?
Thallus
Sporangium
Mycelium
Septum
Hyphae
Answers
Answer:
Ascomycetes have zygotes
Mycelium
Explanation:
Ascomycetes have zygotes which is the main distinction between Ascomycetes and Basidiomycetes. Mycelium is a part of mushroom that is edible and can be eaten. Mycelium is the vegetative part of a fungus that consist of a mass of branching, thread-like hyphae. Hypha is a long, branching, filamentous body of mushroom as well as oomycete and actinobacteria. Hyphae are the primary mode of vegetative growth of fungi which is generally known as mycelium so mycelium is the edible part of mushroom.
Which of the following is the best definition of climate?
1 . The day to day changes in the atmosphere
2. The average weather over a long period of time and over large areas
3. The state of the atmosphere across the world
Answers
Answer:
THE STATE OF THE ATMOSPHERE ACROSS THE WORLD IS THE BEST FROM MY OPINION .
Answer : 1
Explain: The day to day changes in the atmosphere
The ultimate goal of the endangered species act is
Answers
to protect and recover imperiled species and the ecosystems upon which they depend
In biological systems, there are several membrane transport systems responsible for the passage of ions like Na+ and K+.
a. True
b. False
Answers
Answer:
The correct answer is: a. True.
Explanation:
There are several membrane transport systems responsible for the passage of ions like Na+ and K+.
Cell membranes are semipermeable, which means they can regulate which molecules may and cannot flow through them. Some molecules may simply drift in and out of a cell (this is called simple diffusion), while others require specific structures to enter and exit (this type of diffusion is called facilitated diffusion), and still, others require an energy boost to pass the cell membrane (this is known as active transport).
Both simple diffusion and facilitated diffusion are types of passive transport: they happen without the energy boost that ATP gives, unlike active transport.
In passive transport, molecules follow their chemical gradients and travel through the most concentrated compartment to the less concentrated one to equal the concentrations. In active transport, on the other hand, the cell makes an effort to enter or exit ions against their chemical gradients and this is done particularly to maintain said gradients (they are required for the correct functioning of the cell).
Sodium and Potassium are two of the most important ions when it comes to maintaining these gradients: sodium is very concentrated in the outside of the cells (the extracellular compartment), while potassium is highly concentrated in the intracellular compartment. These differences in concentrations are maintained thanks to the Na+/K+ pump, a form of active transport. Apart from the Na+/K+ pump, these ions go through the membrane through passive transport as well, without requiring energy.
If you have genotypes TTHh and ttHH, what is the probability of getting an offspring that is TtHH?
Answers
Answer:
50% or 1/2 in fraction form
The mass of the Sun is 1.99 × 1030 kg. Jupiter is 7.79 × 108 km away from the Sun and has a mass of 1.90 × 1027 kg. The gravitational force between the Sun and Jupiter to three significant figures is × 1023 N.
Answers
Answer:
4.16
Explanation:
edge2021
Answer:
4.16
Explanation:
DNA is referred to as a_____,
meaning that it has_______
strands that are______together.
Answers
Answer:
double helix
two
wound
Explanation:
DNA is referred to as double helix, meaning it has two strands that are wound together.
Which type of transport is used to move a molecule from a region of low
concentration to a region of high concentration?
A. Active transport
B. Osmosis
C. Passive transport
D. Diffusion
SUBMIT
Answers
Answer:
A.(Active transport) is used to move a molecule from a region of low concentration to a region of high concentration.
A = active transport
active transport is the movement of molecules or ions from a region of their low concentration to that of their High concentration across a Semipermeable membrane with the use of oxygen
Natural selection can lead to evolution in a population when:
A. a new allele appears in one of the offspring in a new generation.
B. one of its individuals is able to obtain more resources than others.
C. all individuals have the same genetic traits as their parents.
D. it has genetically diverse members that compete for resources.
Answers
dna is located in the what of the cell and makes up what found there
Answers
6. Compare the different measurements of the thermometer which are used.
Answers
There are many types of contact and contact-free thermometers to choose from. The ages of your household members, as well as personal preference, can help you determine which types to buy.
Like any other device in your home, it’s important to understand how your thermometer works. Not every type works the same way or is designed to provide the same temperature readings.
In New York, the worst-hit state, a total of 350,121 cases have been confirmed and 28,232 deaths have been reported. There are now 29 states with tens of thousands of cases, and more than 50,000 in New York, New Jersey, Massachusetts, Illinois, California, Pennsylvania and Michigan
Answers
Answer:
Thats true
Explanation:
Mr. L was walking through the woods wearing shorts and sandals. He noticed a small tick on his ankle the same evening, and several weeks later he developed flu-like symptoms. A sample of his blood revealed the presence of long, wavelike cells that were twisting and waving. Based on the microscopic findings, which type of microorganism is responsible for Mr. L's symptoms
Answers
Answer:
Protozoa
Explanation:
The long, wavelike cells seen under the microscope would most likely be protozoa and the microorganism responsible for Mr. L's symptoms.
Tick as a vector is capable of causing diseases such as lyme disease, anaplasmosis, babesiosis, Powassan virus disease, tularemia, and a host of other diseases. Among all the diseases, babesiosis is particularly caused by a protozoan known as Babesia microti and it elicits malaria-like symptoms in individuals. Most of the other diseases are caused by bacteria pathogens while a few are caused by virus.
Apart from the above, the morphological characterization of the microorganism responsible for Mr. L's disease is typical for protozoans. Many of them are long and flagellated with a wave-like motion as a movement.
Hence, the case of Mr. L would be that of protozoa.
A student is conducting their science experiment on the effects of sugar on bullfrogs. He has 3 groups of test subjects. 1 group of frogs that receives nothing, they are the control group. The 2nd group of frogs receives half a sugar pill each, and the 3rd group receives a whole sugar pill each. He will measure their activity levels and jump heights after giving them the pills. When he is setting up his data table, what should go in the first column?
Answers
Answer:
Group 1 of frogs.
Explanation:
It is the first thing because you have to note which of the frogs you're talking about before you start.
In classical conditioning _____ is the unlearned, naturally occurring response to the unconditioned stimulus (US). (Pyscology)
Answers
Answer:
unconditioned response
Explanation:
here is the answer..
bag of skin surrounding the testes is called
Answers
Answer:
[tex]{ \pmb{it \: is \: called \: a \: scrotum}}[/tex]
Answer: boao quy dâufd nha bận iod
Explanation:
Name one geographic region that has few or no fossil primates and explain why.
Answers
Answer:
Australia
Explanation:
Fossils are preserved remains (or mouldings) of ancient living things which are preserved in sedimentary rocks. Primate fossils are generally found along with other fossils, usually in ancient soils that contain information on the conditions under which they were formed. Primate fossils are generally found in tropical and subtropical regions (which represent the natural habitat in which these species live). Primates never lived in Australia, and therefore no fossil primates from this geographic area have been found.
The mutation of a cell for a specific function is called
Answers
Explanation:
A gene variant if functionof mutation
Answer:
A gene variant for a specific function
what is gestation period?
Answers
The time interval of a gestation is called the gestation period. In human obstetrics, gestational age refers to the fertilization age plus two weeks. This is approximately the duration since the woman's last menstrual period (LMP) began.
Answer:
gestation period is the period of development during the carrying of the embryo or fetus inside viviparous animals
explain why is it possible for water and food to travel all over the plant organs
Answers
Answer:
Explanation:
hola
La actividad de agua (aw) es la cantidad de agua libre en el alimento, es decir, el agua disponible para el crecimiento de microorganismos y para que se puedan llevar a cabo diferentes reacciones químicas. Tiene un valor máximo de 1 y un valor mínimo de 0. Cuanto menor sea este valor, mejor se conservará el producto. La actividad de agua está relacionada con la textura de los alimentos: a una mayor actividad, la textura es mucho más jugosa y tierna; sin embargo, el producto se altera de forma más fácil y se debe tener más cuidado.A medida que la actividad de agua disminuye, la textura se endurece y el producto se seca más rápido. Por el contrario, los alimentos cuya actividad de agua es baja por naturaleza son más crujientes y se rompen con facilidad. En este caso, si la actividad de agua aumenta, se reblandecen y dan lugar a productos poco atractivos. En ambos casos, el parámetro de la actividad de agua del alimento es un factor determinante para la seguridad del mismo y permite determinar su capacidad de conservación junto con la capacidad de propagación de los microorganismos.Agua y microorganismosControlar la actividad de agua en alimentos es sinónimo de alargar su vida útilCuanto menor es la actividad de agua de un alimento, mayor es su vida útil. Es importante diferenciar entre cantidad de agua y actividad de agua. El primer término hace referencia a la cantidad total de agua presente en el alimento, aunque puede ser que no esté libre para interaccionar. La actividad de agua, en cambio, hace referencia solo a la cantidad de agua libre en el alimento y disponible para reaccionar, es decir, la que puede facilitar la contaminación del producto.Los
