Answer:
Oncogenes are mutated protooncogenes (see explanation below).
Explanation:
“Proto-oncogene” is the name given to various genes whose products stimulate cell proliferation. Examples may include growth factor receptors, and proteins involved in clearing cell cycle checkpoints. Mutations in a proto-oncogene may cause it to either become too rapidly transcribed and/or code for a product that functions in an unchecked manner. This may lead to unrestrained cell proliferation, a basic mechanism of cancer. When and if this mutation takes place, the proto-oncogene becomes known as an oncogene.
Oncogenes are altered versions of proto-oncogenes that can lead to uncontrolled cell growth, leading to cancer. They can produce too much or abnormal protein, upsetting the balance of cell division.
Oncogenes are genes which have the potential to cause cancer. In their normal state, they are referred to as proto-oncogenes, contributing to regular cell growth and division. However, when these genes are altered or mutated, they can become oncogenes that stimulate the cell cycle and lead to uncontrolled cell growth - a hallmark of cancer.
Typically, proto-oncogenes help regulate cell division and ensure that cells divide in a controlled way. However, various factors such as genetic mutations, can turn a proto-oncogene into an oncogene. These oncogenes can produce too much protein or abnormal protein, upsetting the regular balance of cell division and halting normal function. This often results in a cell growing and dividing too rapidly, which can lead to a cancerous tumor.
#SPJ3
indicator to a known substance and water. Why is
that important? Check all reasons.
Answer:
The correct answer is -
- to match the mystery food sample to a definite positive result (gelatin, oil.)
- to match the mystery food sample to a definite negative result (water)
Explanation:
Adding an indicator or any indicator to an unknown food sample or any sample and then adding the same indicator to the known sample is necessary to check and confirm the positive result and negative result that will help to match with the experiment result.
For positive result adding an indicator to get a definite positive result to mystery food for example gelatin or oil. Similarly for a definite negative result adding it to known food or water.
Well the soil classification is usually done on the basis of particle sizes and composition of soil.
Clay usually consists of particles less than 0.075 mm in size. It is a sticky soil and shows great changes in volume with variation in its water contact. It also shows considerable strength when air dried.
Silt has larger particles than clay and are mainly inorganic in nature. The particle size is less than 0.075mm and exhibits slightly plastic or non plastic behaviour.
Humus is soil consisting of dead and decaying organic matter. It is mainly organic in content but some inorganic particles may be mixed in it. The top soil in a tropical forest may be considered as humus.
Sand is the largest particle in soil among the options provided. Particles in soil are categorized into three groups: sand, silt, and clay, with sand having the largest particle size. Humus, though a soil component, is not a soil particle but decomposed organic material.
The largest particle in soil, out of the options given, is sand. In soils, particles are categorized into three main groups according to their sizes: sand, silt, and clay. Sand has the largest particles, typically between 0.05mm and 2mm in diameter. On the other hand, silt particles are smaller than sand, typically between 0.002mm and 0.05mm, and clay has the smallest, less than 0.002mm. Humus, another component of soil but not a soil particle, is decomposed organic material that contributes to the nutrient content of the soil.
#SPJ6
This is predation. A predator-prey relationship. The predator catches the prey, kills and eats it for food.
Answer:
predator/pray
Explanation:
i did it on study island
Curiousity-A scientist shows interest and pays particular attentions to objects or events. He asks questions and seeks answers.
Honesty-A scientist gives a truthful report of observations. He does not withhold important information just to please himself or others.
Open-Mindedness- A scientist listens to and respects the ideas of others. He accepts criticism and changes his mind if reliable evidence contrdicts his believes.
Skepticism- A scientist bases suggestions and conclusions on evidences. When in doubt, he questions the veracity of a statement in relation to the evidences presented.
Creativity- A scientist can generate new and original ideas.
B. The tree produces a large number of genetically identical offspring.
C. The tree produces a small number of offspring that are identical to the female parent.
D. The tree produces a small number of offspring that are identical to the male parent.
The tree produces a large number of genetically identical offspring, due to sexual reproduction. Therefore, option A is correct.
sexual reproduction is the process through which two individuals of different sexes combine their genetic information to create new species. In the majority of organisms, reproductive cells called gametes, which mate to create a diploid zygote, have chromosomes in their nuclei that carry the genetic material.
The two main methods of sexual reproduction are conjugation and syngamy. Syngamy describes the union of haploid sex cells that produces a diploid zygote. Therefore, syngamy essentially refers to fertilization.
The tree produces a large number of genetically identical offspring because it is a sexual reproduction. Therefore, option A is correct.
Learn more about sexual reproduction, here:
#SPJ3