HELP ASAP PLEASE FAST HELP

During radioactive decay, atoms of a radioactive element break down and change into other atoms of another element-all at once

const2013 [10]

This is true I looked up in the science dictionary.

7 0

3 years ago

Which staternent is one of the three parts of cell theory

DerKrebs [107]

Answer:

The Cell Theory:

Explanation:

1.cells are the basic human of structure and function of all living things

2. cells are the smallest part of a living that that is alive a keeps the organism alive

3. all cells from from other cells

4. cells are damaged or destroyed, so they need replacing

hope this helps

5 0

3 years ago

Which of these statements is true of asexual reproduction? a it produces offspring genetically identical to each other and requi

vivado [14]

I believe it is A

sorry if I'm wrong but I hope it helps!
please make my answer brainliest!!
Thanks!!

4 0

3 years ago

Describe how a plasmid can be genetically modified to include a piece of foreign dna that alters the phenotype of bacterial cell

Ilia_Sergeevich [38]

Simple version:

First, the section with the desirable gene must be identified. Assuming that has already happened, the section of DNA must be excised from the original genome using restriction enzymes, which recognize certain DNA sequences and snip DNA at those sites. DNA ligase is used to "glue" these ends back together. The DNA is inserted into a plasmid (also with restriction enzymes), which would usually contain antibiotic-resistance genes (so they survive in an environment containing the antibiotic, which would also help show if the bacteria have been successfully transformed).

Then comes the actual transformation process. The bacteria to be transformed are mixed with calcium chloride (which causes the bacteria to be more receptive to the plasmids) and then mixed with the plasmids. The bacterial cells are subjected to a heat shock (the solution is heated and rapidly cooled, e.g. by placing the mixture in a hot water bath and quickly transferred to ice) so they will take up the plasmid (since the temperature change makes the membrane more permeable). The bacteria are placed on a growth medium containing the antibiotic they're resistant to. Only those successfully transformed would survive.

7 0

3 years ago

When Mendel performed his experiments, only one trait appeared in the F1 generation, (in this case, round peas) and the other tr

bearhunter [10]

Answer:

See the answer below

Explanation:

The explanation I would give to the phenomenon is that the round trait in peas completely covers or nullify the wrinkled trait when they are together. In order words, whenever a single the allele of both trait come together to form a new trait, the round trait allele dominates and mask the expression of the allele of the wrinkled trait.

This is what Mendel explained and dominance/recessive effects. The round trait was dominant over the wrinkled trait while the wrinkled trait was said to be recessive and can only be expressed when alone.

3 0

3 years ago