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Genrish500 [490]
3 years ago
6

The Punnett square is

Biology
1 answer:
fredd [130]3 years ago
8 0

Answer:

A Punnett Square is  is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment.

Explanation:

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which of the following statements illustrate how fossils record the evolution of defense mechanisms over time?
Veronika [31]

Answer:

lugi

from super smash brus

Explanation:

7 0
3 years ago
Nucleic acid segments and are nucleic acids that can store biological information based on the sequence of their nucleotide mono
aleksklad [387]

Full Question (figure attached):

Nucleic acid segments and ar

DNA and RNA are nucleic acids that can store biological information based on the sequence of their nucleotide monomers. Figure 1 shows a short segment of each of the two types of nucleic acids. Which of the following best describes a structural difference between DNA and RNA?

A. DNA contains four types of nitrogenous bases, whereas RNA contains only two types of nitrogenous bases

B. The backbone of DNA contains deoxyibose, whereas the backbon e of RNA contains ribose.

C. A DNA molecule is composed of two parallel strands with the same 5'-3' directionality, whereas an RNA molecule is composed of only one strand

D. Phosphate groups provide rigidity to DNA, but RNA is flexible and contains no phosphate groups

Answer:

B. The backbone of DNA contains deoxyibose, whereas the backbon e of RNA contains ribose.

Explanation:

A. DNA contains four types of nitrogenous bases, whereas RNA contains only two types of nitrogenous bases - this is false. Both contain four types of nitrogenous bases. DNA contains cytosine, guanine, adenosine and thymine, whereas RNA contains cytosine, guanine, adenine, and uracil.

B. The backbone of DNA contains deoxyibose, whereas the backbon e of RNA contains ribose. - this is true, each nucleotide in DNA contains a deoxyribose sugar, whereas each nucleotide in RNA contains a ribose sugar

C. A DNA molecule is composed of two parallel strands with the same 5'-3' directionality, whereas an RNA molecule is composed of only one strand - this is false. DNA is composed of 2 strands, and RNA is composed of one, but the DNA strands run in an anti-parallel configuration (one runs 5'-3', the other runs 3'-5')

D. Phosphate groups provide rigidity to DNA, but RNA is flexible and contains no phosphate groups - this is false, both DNA and RNA nucleotides contain phosphate groups

6 0
2 years ago
If an organism did not respond to changing environmental circumstances by regulating gene expression, what is the most likely oc
Licemer1 [7]
B cells would be unable to reproduce 
8 0
3 years ago
Read 2 more answers
Which of these energy resources was not created by by the Sun's energy?
Lady bird [3.3K]
Coal is the answer  uranium and petrolium are products             
8 0
3 years ago
Read 2 more answers
Pulse-chase experiments and protein location
ExtremeBDS [4]

Answer:

The correct answer is option - phagocytosis.

Explanation:

The explained experiment is the pulse-chase experiment in this the cells that are involved are macrophages. Macrophages are the immunity cells that have a large number of the lysosomes for killing the pathogens enters in the cell brought into the cell through the process of phagocytosis.

Phagocytosis takes place with the help of the enzyme called hydrolytic enzyme that is synthesized in the endoplasmic reticulum and modified by Golgi and moves to the lysosome.

Thus, the correct answer is option - phagocytosis.

5 0
3 years ago
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