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mamaluj [8]
3 years ago
9

What is the condition of having gametes of different sizes and shapes? oogamy isogamy anisogamy or monogamy

Biology
2 answers:
Flura [38]3 years ago
8 0

The answer your looking for is here anisogamy


BlackZzzverrR [31]3 years ago
8 0

Answer: Anisogamy  

Explanation:

Anisogamy can be defined as a type of sexual reproduction during which the fusion of the male and female gamete takes place that are of different shape and different sizes.

The larger gamete is considered to be female and the smaller gamete is considered to be  male.

Example is gametes of human beings in which the sperm is of different shape and size and the ova is of different shape and size.

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Arguably, the way prokaryotic operons are structured has evolutionary advantages. Based on our discussions in class, briefly des
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Answer:

Advantage of gene expression in prokaryotes is it occurs faster than in eukaryotes because  transcription and translation occur simultaneously in the cytoplasm, and regulation occurs at the transcriptional level. Whereas disadvantage of gene expression in prokaryotes is that there is no post translational modification and low expression of genes.

Explanation:

Prokaryotic organisms are single-celled organisms that lack a cell nucleus, and their DNA therefore floats freely in the cell cytoplasm. To synthesize a protein, the processes of transcription and translation occur almost simultaneously. When the resulting protein is no longer needed, transcription stops. As a result, the primary method to control what type of protein and how much of each protein is expressed in a prokaryotic cell is the regulation of DNA transcription. All of the subsequent steps occur automatically. When more protein is required, more transcription occurs. Therefore, in prokaryotic cells, the control of gene expression is mostly at the transcriptional level. whereas in eukaryotes, the DNA is contained inside the cell’s nucleus and there it is transcribed into RNA. The newly synthesized RNA is then transported out of the nucleus into the cytoplasm, where ribosomes translate the RNA into protein. The processes of transcription and translation are physically separated by the nuclear membrane; transcription occurs only within the nucleus, and translation occurs only outside the nucleus in the cytoplasm.

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3 years ago
Select all the following that describe isotopes of an element
saw5 [17]

Answer:

Different numbers of neutrons

4 0
3 years ago
A population that is eaten by organisms from another population is known as
Nataly_w [17]

Answer:

B

Explanation:

A resource population is any part of the environment that can be used to meet another organism's needs. The first population acts as this because the second population is surviving by eating the first.

8 0
3 years ago
High blood pressure occurs when there is too much blood flowing through the blood vessels at one time. By changing the amount of
lesantik [10]

Answer: The amount of water in the blood would increase.

Explanation:

7 0
2 years ago
Which of the following statements regarding restriction enzymes is NOT true?
Anni [7]

Answer:

The correct option is option A

Explanation:

Restriction enzymes are endocleases that cleave DNA fragment (<u>of usually four, five or six nucleotide long</u>) at <u>specific sites to produce blunt or sticky ends</u>. They <u>recognize palindromic sequences of host DNA when cleaving the specific sites</u>. The sequences below (on complementary strands) give an example of a palindromic sequences.

5'-CCC║GGG-3'

3'-GGG║CCC-5'

As can be seen above, when read from 5' to 3', the two sequences are the same despite being on opposing strands. And when cut between the guanine (G) and cytosine (C) (as shown above), it produces a blunt end. But when cut as shown below produces a sticky end.

5'- G║AATTC -3'

3'- CTTAA║G -5'

The explanation above shows options C and D are right while option A is wrong (hence the correct option).

Also, bacteria prevent their own DNA from been digested by restriction enzymes by adding methyl group to their restriction sites <u>which prevents restriction enzymes from recognizing restriction sites of their DNA;</u> this generally makes bacterial DNA to be highly methylated. This explanation makes option B right also.

6 0
3 years ago
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