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ELEN [110]
2 years ago
14

Help ASAP, I need the right answer please.

Biology
1 answer:
liberstina [14]2 years ago
5 0

Answer:

The Big Bang is an expansion event that occurred about 13.7 billion years ago

Explanation:

The Big Bang Theory is the leading explanation for how the universe began. Simply put, it says the universe as we know it started with an infinitely hot and dense single point that inflated and stretched — first at unimaginable speeds, and then at a more measurable rate — over the next 13.8 billion years to the still-expanding cosmos that we know today.

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When Mendel crossed a plant homozygous for round seeds to another plant homozygous for wrinkled seeds, he found that all the pro
gulaghasi [49]

Answer:

E

Explanation:

Gregor Mendel discovered the principles that governs heredity. In one of his experiments, he discovered that an organism receives two forms of a gene called ALLELE from each parent. He realized that one allele is capable of masking the expression of its variant pair in a gene. He called the allele that masks or is expressed, DOMINANT allele while the allele that is masked, RECESSIVE allele. He termed this principle the LAW OF DOMINANCE.

The above explained law of dominance is what applies in the question here. When the homozygous round allele and wrinkled allele were crossed, the allele for round seeds are dominant over the allele for wrinkled seeds (recessive) i.e. in a heterozygous state (combination of the different alleles), the round allele will mask the phenotypic expression of the wrinkled allele, expressing itself over it.

7 0
3 years ago
Which of the following statements concerning eukaryotic cells are true? Check all that apply.
Free_Kalibri [48]

Answer:

They are typically larger than prokaryotic cells

The DNA of a eukaryotic cell is contained in the cell nucleus.

4 0
2 years ago
Read 2 more answers
vince stains dna with a dna-binding dye. what suborganellar structures will become visible after staining?
Basile [38]

The suborganellar structure that will become visible after staining is nucleoid.

In the field of biology, nucleoid can be described as a region inside the prokaryotic cell in which the DNA is present.

The prokaryotes do not have a membrane-bound nucleus like the eukaryotes. Hence, the region where the genetic material of the prokaryotes is present is an irregular shaper structure referred to as the nucleoid.

When DNA is stained with a DNA-binding dye, the suborganellar structure that will become visible will be the nucleoid as it is the region where the DNA is present.

To learn more about nucleoid, click here:

brainly.com/question/1596753

#SPJ4

3 0
1 year ago
Please help, I’ll give brainliest :)
seropon [69]

Answer:

a,b and c

Explanation:

( it might be wrong pls dont report me just let me kno y its wrong )

7 0
3 years ago
Which portion of the sperm contains the enzymes needed to penetrate the oocyte?
tankabanditka [31]
<span>The head of the sperm contains the necessary enzymes to help it penetrate the oocyte. The sperm cell is anatomically structured to have four parts which are the head, neck, midpiece, and a tail. Inside the head of the sperm are densely coiled chromatin fibers that contain the nucleus for helping the sperm penetrate the female fertilized egg necessary for reproduction.</span>
5 0
3 years ago
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