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GaryK [48]
3 years ago
7

Most fish deposit fertilized eggs, but some sharks keep the fertilized egg inside the female until she gives birth to a relative

ly well-developed pup. these sharks would thus be characterized as _____.
Biology
1 answer:
exis [7]3 years ago
3 0
The sharks would be characterized as ovoviviparous. This is defined as an animal producing an egg hatched within the body of the parent. This occurs in few fish, snakes, and insects. 
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7 0
3 years ago
What are the mechanisms by which aneuploidy and polyploidy are caused? What are the mechanisms by which aneuploidy and polyploid
sleet_krkn [62]

The correct answer is:

The principal cause of aneuploidy is chromosome nondisjunction during mitosis or meiosis. Polyploidy in nature can result either from the duplication of euploid chromosome sets from a single species or from the combining of chromosome sets from different species.  

Aneuploidy is a phenomenon when there is the presence of an abnormal number of chromosomes in a cell (an extra or missing chromosome). Usually it appears as a result of improper cell division (chromosomes don’t separate) and it can cause many genetic disorders.

Polyploidy refers to a state when there are more than two sets of chromosomes (one from mother one from father). Triploid (three sets of chromosomes) and tetraploid (four sets of chromosomes) chromosomes are examples of polyploidy. This phenomenon is most common in plants.

5 0
3 years ago
A protein can begin to fold and to bind to other proteins while still being synthesized on the ribosome. True False
Gennadij [26K]

Answer: Yes

Explanation:

his amazing artwork shows a process that takes place in the cells of all living things: the production of proteins. This process is called protein synthesis, and it actually consists of two processes — transcription and translation. In eukaryotic cells, transcription takes place in the nucleus. During transcription, DNA is used as a template to make a molecule of messenger RNA (mRNA). The molecule of mRNA then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. During translation, the genetic code in mRNA is read and used to make a protein. These two processes are summed up by the central dogma of molecular biology: DNA → RNA → Protein.

4 0
3 years ago
You believe a victim may have a closed abdominal injury. what is the next care step you should take?
Yuki888 [10]
If you suspect that a victim has closed abdominal injury, the best thing to do is to carefully position the victim on his or her back and loose any tight fitting clothing that the person may have on. 
Positioning this victim like this will prevent the risk of causing further injury.
5 0
3 years ago
The finger used to control the delivery of liquid from a pipet is the
Fynjy0 [20]

The pipettes can basically be characterized into five grades. these grades includes the serological, disposable, repeat, single channel and multi-channel pipette. The guidelines for the usage of each of these pipettes differ. However, some instructions are common, such as the control of the flow of liquid. The index finger is used for the purpose of controlling the flow of the liquid from the pipette.

Hence, the answer is 'index finger'.

5 0
3 years ago
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