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Lostsunrise [7]
3 years ago
5

When DNA was discovered, they saw that the strands of the double helix are lined up in the opposite direction of each other. Wha

t kind of orientation is this?
Biology
1 answer:
Naily [24]3 years ago
3 0

When DNA was discovered, Watson and Crick saw that the strands of the double helix are lined up in the opposite direction of each other. This type of orientation is called the antiparallel orientation.

The antiparallel orientation is a type of orientation showing two polymers present side by side but running in the opposite direction. The best example of this is the deoxyribo nucleic acid (DNA). DNA molecule is made up of a pair of polynucleotide strands which are antiparallel. The antiparallel orientation of the DNA facilitates the hydrogen bonding between the two complimentary strands. This is also important for the processes of DNA replication and transcription.

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Complete the punnet square.
Nataly_w [17]

The probability of the offspring will be 50%, 50%, and 0% respectively.

<h3>Probability in genetics</h3>

It seems the allele for the trait in question is F(f) from the image.

One parent is heterozygous while the other is homzygous.

      Ff    x    FF

   FF   FF   Ff   Ff

Probability of FF = 2/4 or 50%

Probability of Ff = 2/4 or 50%

Probability of ff = 0

More on probability in genetics can be found here: brainly.com/question/851793

#SPJ1

3 0
2 years ago
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Leto [7]

Answer:

1. It serves as the functional unit of the nervous system. <em>b. neurons</em>

2. It collects information from the sense organ such as the eyes and the nose. <em>c. peripheral nervous  system</em>

3. It serves as the primary organ of the  central nervous system. f. spinal cord​  

4. It controls or regulates the body's internal brain environment, including the body temperature,  pulse and respiration rate, and bood pressure. <em>e. autonomic nervous  system</em>

5. It is one of the systems that is directly involved in maintaining the normal functions of cells. <em>d. nervous system</em>  

Explanation:

Neuron: Neurons are the structural and functional units in the nervous system.  Neurons transmit nervous impulses. These cells are formed in general by a cellular body, dendrites that are cytoplasmic extensions that receive stimuli from other cells, and an axon that is a long formation capable of conducting the electrochemical signals. Every neuron forms connections with other neurons. These connections are known as synapsis.

Peripheral nervous  system: Sense information is received by the peripheral nervous system and processed by neurons and synapses in the central nervous system. There are three types of neurons involved in this transmission: sensory or efferent neurons, interneurons, and motor or efferent neurons.

Spinal cord: The nervous system might be divided into the central nervous system and peripheral nervous system. There are two organs involved in the central nervous system that funtion as control centers. One of them is the brain, and the other organ is the spinal cord, surrounded by the vertebral column.  

Autonomic nervous  system: The autonomic nervous system is conformed by the sympathetic nervous system and the parasympathetic nervous system. It has too many functions in the organisms, controlling pressure, heart bitting, body temperature, sexual responses, urination, digestion, general metabolism, among others. It controls and regulates the whole organism.  

The nervous system: Homeostasis refers to stability, balance, or equilibrium. The organism needs to maintain homeostasis to guarantee the correct functioning of cells, tissues, organs, and so on. The homeostatic regulation is controlled by the endocrine system and by the nervous system, which acts as the control center.

4 0
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