Which was Ventor’s contribution to science? discovered the existence of single-celled A)organisms B)invented the light microscope C)discovered the structure of DNA D)invented a synthetic cell

Answers

Answer 1

Answer:

The correct option is D.
Craig Venter contributed significantly toscience and humanity by inventing a synthetic cell. He accomplished this byconstructing the genome of a bacterium and by incorporating it into acell. The cell was made by joining together the genome of a pathogen from small stretches of DNA that are synthesized in the laboratory. The genome created was then inserted into an empty cytoplasm of a related bacterium. The pathogen use is called mycoplasma mycoides, it usually infect goats.The cell is the first synthetic life form in the world and it open theway for new types of research.

Answer 2

Answer: Venter's contribution to science was the invention of a synthetic cell. The correct option is D. Craig Venter created a synthetic cell which is totally controlled by man-made genetic instructions. This invention has opened the door for a lot of potential new research which can be carried out in the field of molecular biology.

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ASAP HELP 100 POINTS Which describes nuclear fission? starts when two atoms slam together, causing the larger atom to split into two smaller atoms

starts when a neutron slams into an atom, causing two atoms to form one, heavier atom

starts when two atoms slam together to form one, heavier atom

starts when a neutron slams into an atom, causing the larger atom to split into two smaller atoms

Answers

The statement that describes nuclear fission is as follows:

Starts when a neutron slams into an atom, causing the larger atom to split into two smaller atoms.

Thus, the correct option for this question is D.

What is Nuclear fission?

Nuclear fission may be defined as a type of nuclear reaction during which the nucleus of an atom splits into two or more smaller nuclei due to the impact of another particle with the liberation of a very large amount of energy.

Nuclear fission is a process where a heavy nucleus is bombarded through neutrons and due to this, it becomes unstable. This causes it to decompose into two or more nuclei spontaneously with equivalent size and magnitude. It involves a tremendous detachment of energy as well as the emission of two or more neutrons.

Therefore, the statement "starts when neutron slams into an atom, causing the larger atom to split into two smaller atoms" describes the process of nuclear fission. Thus, the correct option for this question is D.

To learn more about Nuclear fission, refer to the link:

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Answer:

to study the nature and size of the image formed by a convex lens using a candle and a screen activity file

Which of these is true of meiosis? A. n--->n
B. 2n--->2n
C. n--->2n
D. 2n--->n

Answers

2n --> n

You start with a cell with a diploid set of chromosomes (2n). In S phase (a part of interphase), the chromosomes are doubled (4n). After meiosis, each cell has a haploid set of chromosomes.

n-->n happens in fungi, when haploid mycelia cells replicate but stay haploid. I'm a bit rusty, though, so I'm not too sure.
n --> 2n is fertilization
2n --> 2n is mitosis, the cell replication process for somatic cells.

A(n) _______ is a characteristic arising from genes located on chromosomes that are not gender-determining.A. genotype
B. allele
C. sex-linked trait
D. autosomal trait

Answers

The correct answer is D. Autosomal chromosome.

An autosomal chromosome is a characteristic which arises from genes which are located in the chromosomes that are not gender-determining. The autosomal trait does not depend on sex.
Its function is to pass genetic traits from mother and father to the child. Traits can be recessive or dominant. When someone has green eyes we say he/she is recessive trait and not dependent on the sex of the child.
In each cell, people have 22 pairs of autosomes plus two sex chromosomes which Y and X in male and XX in the female.

Out of the following choices, an autosomal trait is a characteristic arising from genes located on chromosomes that are not gender-determining.

What is the RNA sequence that will be formed from the DNA sequence: GGCTATTC?a. GGCUAUUC
b. CCGAUAAG
c. CCGUAUUG
d. CCGTUTTG

Answers

The correct answer is B.

According to base pairing rules, A will always pair with T and and G will always pair with C. This pairing happens in DNA.

When it comes to RNA, there is a slight difference. Thymine is never found in RNA but is replaced with Uracil. So instead of Adenine pairing with Thymine, it will be Uracil which takes the place of Thymine.

It is important to note that Thymine in DNA will code for Adenine in RNA because Adenine is found in RNA base sequence. However whenever Adenine in DNA wants to code for a complementary base to copy on RNA, then Adenine will call for Uracil, not Thymine.

Which of the following is correct for the effect of linkage on recombination?It increases the percentage of recombinants.
It results in 50% recombinants.
It reduces the percentage of recombinants.

Answers

The answer for your following question would be : C. It reduces the percentage of recombinants. From the following options, The one that is correct for the effect of linkage on recombination is : it reduces the percentage of recombinants

Answer:

It reduces the percentage of recombinants.

Explanation:

The independent assortment of genes gives rise to new gene combination and recombinants. Linkage refers to the tendency of two genes present in the vicinity on the same chromosome to get transmitted together.

Since the linked genes are inherited together, they do not exhibit independent assortment. Due to the absence of independent assortment in linked genes, more of parental types and lesser recombinants are formed.

Which part of the body is like a mixer?

Answers

Answer:

The mouth and teeth break up the food and mix it with saliva.

Answer:

stomach

Explanation:

The stomach is like a mixer, churning and mashing together all the small balls of food that came down the esophagus into smaller and smaller pieces. It does this with help from the strong muscles in the walls of the stomach and gastric (say: GAS-trik) juices that also come from the stomach's walls.

Other Questions

Before it is published in a scientific journal, a paper must pass through the peer reveiw process. which of the following is a benefit of this practice? A. A scientific paper is a reiable source of information.b. news about a scientific discovery reaches the public sooner.c. only the most exciting experiments are published.d. a hypothesis is accepted without any supporting evidence.

To warm up before a run, David begins by completing quad and hurdler's stretches. Which of these accurately evaluates his choice of warm-up activities? a ) These activities are appropriate because they prepare muscles for intense movement. B)These activities are not appropriate because the muscles stretched are not warm yet. ] c) These activities are appropriate because they make the leg muscles more flexible. D)These activities are not appropriate because they stretch muscles not used in the exercise.

Where does the subtrate bind to the enzyme

DNA replication occurs in a cell in all of the following situations, EXCEPT whenA: cells undergo meiosis. B: cells undergo mitosis. C: proteins are synthesized. D: cells repair damage from UV light.