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Natali [406]
3 years ago
7

During replication, the strands of a double-stranded DNA molecule separate from each other when a set of bonds are broken. What

did these bonds join together?
a
amino acids
b
5-carbon sugars
c
phosphate groups
d
nitrogenous bases
Biology
1 answer:
Natali [406]3 years ago
5 0
D. nitrogenous bases
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Mendel observed phenotypic traits during the cross of pea plants. Subsequently, he noted each trait had only two forms.

<h3>Mendel's Experiments</h3>

Mendel crossed pure-breeding pea plants, and then he crossed hybrid generations, as well crossed the hybrid progeny back to parental lines.

From these crosses, Mendel observed the descendence and then formulated a series of inheritance principles.

Mendel noted traits can be divided into dominant and recessive phenotypic characteristics.

Dominant characteristics were inherited in an unaltered manner after hybridization of true breeding [plants.

Learn more about Mendel's experiments here:

brainly.com/question/9546178

3 0
2 years ago
1. How does the cell membrane allow animals to move without rupturing the cells in the body?
oksian1 [2.3K]

.

Explanation:

1)The cell membrane functions as a semi-permeable barrier, allowing a very few molecules across it while fencing the majority of organically produced chemicals inside the cell. Electron microscopic examinations of cell membranes have led to the development of the lipid bilayer model (also referred to as the fluid-mosaic model). The most common molecule in the model is the phospholipid, which has a polar (hydrophilic) head and two nonpolar (hydrophobic) tails.

2) simple diffusion across the cell plasma membrane. The structure of the lipid bilayer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down the concentration gradient is , by simple diffusion.

3) some molecules, such as carbon dioxide and oxygen, can diffuse across the plasma membrane directly, but others need help to cross its hydrophobic or however, because they are charged the polar, they can't cross the phospholipid part of the membrane without help .

4) during fission a copy of the DNA is made and attached to the cell membrane as well. As this cell elongate in preparation for fission, the two DNA copies are pulled apart two opposite ends of the cell. New membrane material is deposited between the two ends of the cell, and a new wall grows between them .

5) UMASS STEM-ED From Bubbles to Cell Membranes Workshop. Bubble ... dynamic nature which can't be properly appreciated in a static textbook. ... the small thread through one of the straws.

6) example of passive transport and active transport across a cell membrane so, cell membranes are semipermeable meaning they have control over what molecules can or cannot pass through. Some molecules can just drift Inn.

4 0
3 years ago
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JulsSmile [24]
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Investigators have arrived at a crime scene and are ready to search for evidence. What needs to happen next?
denpristay [2]

Answer: C . They should map out a grid to systematically look for evidence.

Explanation:

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Even if the case is not complicated, evidence still needs to be searched for so option D is wrong.

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