Answer:
19. The mutated allele must have developed and been acquired by many people before exposure to the virus.
20.
21. The issues surrounding its lack of medical benefits
22.
23. Paul should know he has a higher risk of prostate cancer and take preventative steps.
24. A high degree of genetic similarity among people
25. Germs being spread by person-to-person contact
Explanation:
Many diseases, including general diseases, require the general prevention methods. These include diagnostics, prevention, and monitoring.
A 75-year-old client has a baseline blood pressure of 140/90 mm hg. the nurse obtains a sitting blood pressure in the client's left arm, and the reading is 160/100 mm hg. what action should the nurse take next?
You have figured out how pulmonary arteriole vasoconstriction could lead to high vascular resistance and therefore high blood pressure in the pulmonary circuit. this high resistance is going to make it harder for the heart to push blood through the vessels, overworking the heart and leading to heart failure. which side of the heart is most likely to be overworked?
The proximal end of the ulna illustrates the relationship of form and function. the rounded trochlear notch articulates with the hourglass shape of the trochlea. this forms a joint that allows for ________. the hinge like motion of the forearm the rotational motion of the forearm the curling of the fingers the hyper extension of the forearm
Answer:
Option A, The hinge like motion of the forearm
Explanation:
A hinge joint allows for two motions at a time
a) Flexion - The bending motion
b) Extension - The strengthening motion of arm bones
At the proximal end , the Ulna forms a joint with the humerus and radius of forearm. The Ulna extends to form olecranon (the tip of the elbow) Both Ulna and radius bones are attached with an interosseous membrane that causes movement just like a hinge joint.
Option A is correct
If transcription occurred from left to right, which strand is the template strand? if transcription occurred from left to right, which strand is the template strand? 5' - tatgcagcacatt - 3' 5' - atacgtcgtgtaa - 3' 3' - atacgtcgtgtaa - 5' 3' - tatgcagcacatt - 5'
Final answer:
The template strand for transcription occurring from left to right is 3' - tatgcagcacatt - 5', as RNA polymerase synthesizes RNA in the 5' to 3' direction by reading this template strand in the 3' to 5' direction.
Explanation:
If transcription occurs from left to right on a DNA segment, the template strand will be the one running in the 3' to 5' direction because transcription proceeds in the 5' to 3' direction. Looking at the provided sequences, the template strand is 3' - tatgcagcacatt - 5' since transcription occurring from left to right would involve polymerase moving along this strand in the 3' to 5' direction while synthesizing RNA in the 5' to 3' direction.
During this process, adenine (A) on the DNA template strand dictates the addition of uracil (U) in RNA, thymine (T) will be transcribed as adenine (A), and cytosine (C) pairs with guanine (G) as usual.
what are the limitations of the Dissecting Microscope?
If an organism has 6 haploid chromosomes, how many chromosomes are present? 6 12
The number of chromosomes in a haploid cell, which includes an egg and sperm, is half that of a diploid cell, or a normal cell. Therefore, a haploid cell would have 12 chromosomes.
What is Haploid chromosomes?A cell with a single set of chromosomes is called haploid. The number of chromosomes in sperm or egg cells, often known as gametes, is also referred to as haploid.
In humans, gametes are haploid cells with 23 chromosomes—one of each chromosomal pair found in diplod cells—and are hence haploid. The haploid number, commonly known as n, is used to indicate the number of chromosomes in a single pair. n = 23 for people.
Half of the chromosomes found in somatic cells, or the body's typical diploid cells, are found in gametes. Meiosis, a type of cell division that cuts the number of chromosomes in a parent diploid cell in half, produces haploid gametes.
Therefore, The number of chromosomes in a haploid cell, which includes an egg and sperm, is half that of a diploid cell, or a normal cell. Therefore, a haploid cell would have 12 chromosomes.
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When we encounter a stressor, the _____ nervous system accelerates the automatic processes in our body, and after the stressor is over, the _____ nervous system returns us to normal functioning?
Answer: The correct answers for the blanks are-
Sympathetic nervous system and
Parasympathetic nervous system respectively.
Explanation:
The sympathetic nervous system is also referred as '' fight or flight'' system of body as it prepares body for an intense activities during any stressful situation.
It accelerates the processes of body in a way that either body needs to "fight" or run away in response to a particular stressor.
On the other hand, the parasympathetic nervous system is the ''rest and digest'' system of the body. It brings calm and relaxes the body by conserving energy through slowing down the processes taking place. So, when the stressor is gone, the body relaxes and comes back to normal function through parasympathetic branch.
Describe the role of bone morrow in the immune system. Explain why someone who has a genetic disorder that does not allow their bone marrow to do its job may be helped by a bone marrow transplant.
Each of two parents has the genotype red divided by brown, which consists of the pair of alleles that determine hair color, and each parent contributes one of those alleles to a child. assume that if the child has at least one red allele, that color will dominate and the child's hair color will be red.
Q1) List the different possible outcomes. Assume that these outcomes are equally likely.
the dominant allele - red (R)
recessive allele - brown (r)
both parents are heterozygous, meaning each of them have both alleles. one allele from each parent will be passed on to the child. therefore the child will have total of 2 alleles, one allele from each parent.
Parents R/r x R/r
possible outcomes - R/R R/r r/R r/r
dominant allele is when at least one allele being there in the genotype will express the corresponding phenotype. Recessive allele is when both alleles need to be recessive for it to be expressed.
outcomes:
red - R/R , R/r, r/R and brown - r/r
Q2) What is the probability that a child of these parents will have the brown divided by brown genotype?
There are 4 outcomes possible as stated in the previous question. From these 4 outcomes, we are being asked to calculate the probability of child having the genotype r/r. both alleles should be brown colour.
the 4 outcomes - R/R , R/r, r/R, r/r
as brown is the recessive allele, both alleles need to be brown for it to be expressed. only one of these 4 outcomes have r/r
Probability of r/r - 1/4 = 0.25
Q3) What is the probability that the child will have red hair color?
as red is the dominant allele, at least one of the alleles being present would express the red phenotype. from the 4 outcomes ;
R/R , R/r, r/R, r/r - three of these have at least one R allele -R/R, R/r, r/R
therefore in three of these outcomes, red will be expressed.
Probability of red being expressed - 3/4 = 0.75
How many synapses are crossed in a single reflex arc during a muscle stretch reflex?
In a typical muscle stretch reflex, two synapses are crossed: one between the sensory neuron and the spinal cord and another between the spinal cord and the motor neuron.
Explanation:In the case of a muscle stretch reflex, typically only two synapses are crossed. For example, when a muscle is stretched, signals are sent to the spinal cord via sensory neurons (first synapse). In the spinal cord, these sensory neurons synapse with motor neurons (second synapse) which then send signals back to the muscle causing it to contract and resist the stretch.
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Match each description below with the cell type it characterizes. cell types may be used more than once or not at all.
a. melanocyte
b. keratinocyte
c. fibroblast major cell type found in the dermis of the skin; its primary function is to secrete extracellular matrix.
which type of scientific statement is defined as "a possible explanation or answer to a scientific question that is based on our prior knowledge or research and is testable"?
An animal experiences an injury to its head. it then starts to eat uncontrollably. what part of the brainis probably injured?
The wave like pattern of contraction of smooth muscle cells within the wall of the digestive tract is called
The approximate transfer of energy from one trophic level to the next higher trophic level is ________.
To find the distance to an earthquake’s epicenter, scientists _______________________________.
analyze the arrival times of the P waves and surface waves
analyze the arrival times of the P waves and S waves
analyze the arrival times of the surface waves and S waves
analyze the arrival times of the Love waves and Rayleigh waves
32. Explain the relationship between the central nervous system and the peripheral nervous system. How do
they work together to accomplish a task? (4 points)
The nervous system develops throughout the human body and includes very different elements in their forms and functions. It is divided into two complementary systems, the Peripheral Nervous System (PNS) and the Central Nervous System (CNS).
The SNP includes all the nerve tissue that runs through the body. It has a dual function: to receive information by sensory sensors and transmit them to the CNS, and to activate motor functions controlled by the CNS. It consists of two parts, that somatic, activating the skeletal muscles and that, autonomous, attached to the viscera.
The CNS is the brain and spinal cord. It is the center of information processing.
Cells that are ________ possess a single set of chromosomes
A client scans the adult inpatient unit on arrival at the hospital. the client is neatly dressed and clutches a leather briefcase. the client refuses to let the nurse touch the briefcase to check it for valuables or contraband. which action by the nurse would be best?
Assessment of a term neonate at 8 hours after birth reveals tachypnea, diminished femoral pulses, and poor lower body perfusion. the nurse notifies the health care provider (hcp) based on the interpretation that these symptoms are associated with which complication?
This is a medical condition in which the aorta, the largest blood vessel that leaves the heart, contracts. This blood vessel is tasked with carrying oxygenated blood from the heart to the rest of the body. Also known as Aortic narrowing, this medical condition can be identified by symptoms like tachypnea, diminished femoral pulses, and poor lower body perfusion.
Besides lymph nodes, where would you expect to find proliferating (dividing) b cells?
Calories are units of heat that express the energy value of food.
a. True
b. False
Which of the following weather conditions would result in the greatest rate of evaporation from the Earth's surface?
Some fruit flies are born with curly wings which makes them unable to fly. It has been shown that curly wings are caused by a dominant gene which can be represented by the symbol W, while the recessive normal wing gene is represented by the symbol w. If a parent fly with the genotype WW is crossed with a parent of the genotype Ww, what percentage the offspring will have curly wings?
Answer:
The answer would be A) 100%
Explanation:
100% of the offspring produced by a WW x Ww cross with be curly winged. Using a Punnett square, the resultant offspring will each have a dominant form of the allele for wings (i.e. curly).
If there was a large oil spill close to shore, which method would be deployed to prevent a large scale impact on the wildlife?
Answer:
Booms
Explanation:
I just took the test.
If there was a large oil spill close to the shore, the method which would be deployed to prevent a large scale impact on the wildlife are the floating barriers which are mainly booms.
What are Floating barriers?Floating barriers are also referred to as the boom. These are the devices which are placed in the waterbody to control and also contain oil, floating debris, invasive aquatic plants, trash, silt, sediment, and enough turbidity. A floating barrier can be installed either temporarily or permanently in a shore or wildlife.
The most common type of the equipment which is used to control the spread of oil is floating barriers are called as the booms. Containment booms are also used to control the spread of the oil components to reduce the possibility of polluting the shorelines and other resources, as well as to concentrate the oil in thicker surface layers in the shore and also making recovery easier.
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What three adaptations were needed for chordates to move from living in water to living on land?
Choose all the answers that apply. The mantle _____. is the thinnest layer is the thickest layer is the hottest layer is made of solid rock sometimes breaks through the crust
Answer:
the thickest layer, the hottest layer
Explanation:
You respond to the scene of a motor vehicle collision. upon arrival, you find the driver, a young female, sitting on the curb. she is confused, is in obvious respiratory distress, and has pale, moist skin. as your partner manually stabilizes her head, you perform a primary assessment. after performing any immediate livesaving treatment, you should:
In the given scenario, after performing any immediate lifesaving treatment, one should perform a secondary assessment to identify any additional injuries or medical conditions.
The primary assessment is used to identify and treat any life-threatening conditions, such as airway obstruction, breathing problems, or circulation problems.
Once primary issues are resolved, a secondary assessment is performed to identify to check whether there is any other injuries or medical conditions is present that may require treatment.
During the secondary assessment, one will perform a head-to-toe exam to look for any signs of injury. You will also obtain a detailed medical history and gather information about the events leading up to the accident.
Therefore, performing secondary assessment is important after performing primary assessment.
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Which event does not occur during dna replication?
a. unwinding of the parent double helix by helicase
b. formation of short pieces that are connected by dna ligase
c. complementary base pairing
d. use of a rna primer
e. polymerization in the 3′-to-5′ direction by dna polymerase?
Polymerization in 3′-to-5′ direction by DNA polymerase does not occur during DNA replication. The correct option is e.
What is DNA replication?The process by which the genome's DNA is copied in cells is known as DNA replication. Before dividing, a cell must copy its entire genome so that each eventually results in daughter cell has its own complete genome.
Because DNA polymerase acts on the 3'-OH of the existing strand to add free nucleotides, replication proceeds in the 5' to 3' direction.
Thus, the correct option is e.
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Why is the karyotype for people with Turner syndrome written as 45XO
The number 45 means that the subject has 44 normal autosomal chromosomes (22 chromosomes pairs) plus one (1) good sex chromosome (out of the normal homologous pair). The X0 means that the subject, usually a female, lacks one sister chromosome of the homologous X chromosome pair, or has a partial X sister chromosome.