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iVinArrow [24]
3 years ago
11

How does the carbon atom complete its octet? A. It forms ionic bonds by sharing electrons. B. It forms covalent bonds by donatin

g electrons. C. It forms covalent bonds by sharing electrons.
Biology
1 answer:
scoundrel [369]3 years ago
5 0

the answer is c. It shares electrons to complete its octet

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In 4 o'clock flowers, red is dominant to white, but the heterozygote is pink. What is the phenotype ratio of crossing red 4 o'cl
Ne4ueva [31]

Answer:

Phenotypic ratio = 1 Red : 1 Pink

Explanation:

This phenomenon exhited by the gene coding for flower colour in four o'clock plants is called INCOMPLETE DOMINANCE i.e. the red flower allele (R) is not completely dominant over the white flower allele (r), hence, a third intermediate pink phenotype (Rr) is formed in an heterozygous state. The red and white flowers will only be expressed in a RR and rr genotypes respectively.

In a cross between a red-flowered 4 o'clock plant (RR) and a pink-flowered 4 o'clock plant (Rr), the gametes:

R and R will be produced by the red-flowered plant while gamete R and r will be produced by the pink-flowered plant. Using this gamete in a punnet square, one will have four possible offsprings in which two will be phenotypically red-flowered (RR) and two phenotypically pink-flowered (Rr). i.e. 2RR:2Rr

Hence, the phenotypic ratio is 1:1 Red to Pink flower

3 0
3 years ago
Which of the following best describes the main purpose of the combined processes of glycolysis and cellular respiration?
Artemon [7]

Answer:

The correct answer is  conserving the energy of glucose and related molecules in chemical form that the cell can use for work

Explanation:

Glycolysis is an important process of cellular respiration.it occurs in the cytoplasm.

           Glycolysis deals with the break down of glucose and formation of  2 molecules of ATP along with pyruvate.pyruvate then enter into miticondria to carry out the TCA cycle which result in the formation of ATP, NADH,FADH2   and oxaloacetate. NADH is also formed during Glycolysis.

                 In the final process of aerobic respiration known as oxidative phosphorylation the reducing agents such as NADH and FAFH2 are oxidized by liberating electrons and phosphorylation of ADP occurs by the energy generated by proton motive force resulting in the formation of ATP.

          The so formmed ATP is a high energy compound which is utilized by our body to carry out  various process such as muscle contraction ,fatty acid biosynthesis etc.

4 0
3 years ago
Yeast cells, plant cells, and mammal cells all share many similarities in cell signaling. This provides evidence that:________
alina1380 [7]

Answer:

D

Explanation:

3 0
3 years ago
What are producers? I need to know because I do not know it well. Sorry, just want to know.
adell [148]

Answer:

producers are organisms that are capable to make their own food

Explanation:

hope it helps ❤️

7 0
3 years ago
Read 2 more answers
Select all that are coronary veins or any structure associated with coronary veins. jugular vein
faltersainse [42]

These are coronary veins or any structure associated with coronary veins : b. Great cardiac vein, c. Coronary sinus , & d. Middle cardiac vein. The great cardiac vein (GCV) is the largest of the veins draining into the coronary sinus from the myocardium. The coronary sinus is a collection of veins joined together to form a large vessel that collects blood from the heart muscle (myocardium). The middle cardiac vein commences at the apex of the heart; ascends in the posterior longitudinal sulcus, and ends in the coronary sinus near its right extremity. While jugular veins are any of several large veins in the neck, carrying blood from the head and face.

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3 years ago
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