Siblings Billy and Sue are brother and sister, but g are not genetic copies of each other. For example, Sue inherited their mother's copy of chromosome 13 but their father's copy of chromosome 14, while her brother Billy inherited their father's copy of both chromosomes 13 and 14. This is an example of:

Answers

Answer 1

Answer:

The options are

A.Independent assortment

B. Mutation

C. Crossing over

D. Non disjunction

The answer is A.Independent assortment

Explanation:

Independent assortment of genes involves the separation of genes during the formation and development of reproductive cells.

A boy has XY chromosome and a lady has XX chromosomes. This explains why Sue inherited the mother's copy of chromosome 13 but their father's copy of chromosome 14 while her brother Billy inherited their father's copy of both chromosomes 13 and 14. He inherited both due to the presence of XY chromosomes.


Related Questions

A microbiologist would like to use a noncompetent genus of streptococcal bacteria, Enterococcus faecalis, as a cloning host to express genes from Streptococcus pneumoniae, which is naturally competent. Is this possible? Group of answer choices

Answers

Answer:

Yes, with the assistance of electroporation the bacteria Enterococcus can be made competent, and afterward, the Streptococcus bacterial genes can be presented within the Enterococcus with the help of a cloning vector.  

The electropermeabilization or electroporation refers to a microbiology technique in which the permeability of the cell membrane is enhanced with the application of the electric field. This permits drugs, chemicals, or DNA to get presented within the cell.  

The procedure of electroporation is generally used in the field of microbiology to transform yeast, bacteria, or protoplasts of plants by presenting novel coding DNA.  

The Law of Overcompensation and Overload allows for which of the following in regards to intensity?
A. Progressively increase over a period to time
B. Progressively decrease over a period of time
C. Remain the same
D. Acute decrease over a period of time

Answers

Answer:

A. Progressively increase over a period to time

Explanation:

The law of overcompensation states that the environment compensates for any factor by twice the amount and the overload theory states that challenges should be increased while working on a certain task to improve the results.

The laws allow for the following:

Option A. Progressively increase over some time.

The laws can be explained as:

In fitness and sports, the laws of overload and overcompensation are widely used.

The overload principle says that the intensity and exercise duration should be increased gradually to see an improvement in endurance, strength and muscles.

According to the overcompensation theory, the body recovers from any injury or harm the body does not quit there and will be stronger compared to before.

Thus, overcompensation and overload increase over time.

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How is the top layer of the ocean different than the deepest layer
A the top layer is colder and doesn’t receive sunlight
B the top layer receives sunlight and is warmer
C the top layer is warmer and doesn’t receive sunlight
D the top layer is colder and receives sunlight

Answers

Answer:

B the top layer receives sunlight and is warmer

Explanation:

Answer:

B. the top layer receives sunlight and is warmer.

Which activity is part of managing water resources?
studying water to see whether it is polluted
taking a long hot bath to stay warm
drinking water and using it for swimmig and boating
transporting water to areas where it is needed

Answers

First and Last ones I think. Not sure.

Answer: D

Explanation: Studying water isn’t managing it, and taking a long bath isn’t either. Drinking water isn't really saving or managing so D.

. Some people have developed allergies to animal insulin. Explain why the immune system would be able to distinguish animal insulin from human insulin

Answers

Answer: Difference between animal and human insulin and/or not being properly purified.

Explanation:

Insulin is a hormone that regulates the metabolism of secreted by the β-islet of Langerhans cells of the pancreas. It that allows blood sugar, known as glucose, to pass into cells. Glucose comes from the food and drinks and it is the body's main source of energy. So, insulin plays a key role in maintaining proper blood glucose levels.

Animal insulin is produced by the pancreas of animals, usually cows and pigs. Then, the insulin is purified to reduce the chance of the insulin user developing a reaction to the insulin.

Each organism has its own genetical identity and any foreign particle is treated as an antigen. And, there is small chemical difference between insulin produced in animals and insulin produced in humans. That difference, caused by a different sequence of peptides, can be recognized by the immune system as something foreign and as such can be a threat to the body. And that would trigger an immune response. Also, the response can be because it hasn't been properly purified and contains other compounds or proteins that are also foreign.

A student recorded the height of each student in the school. She then made a bar graph of her results. She observed that
the results form a bell-shaped curve. The student could use her graph as evidence to support which argument?
Height is affected by multiple pairs of genes on different chromosomes.
The alleles for tall height and short height are codominant.
The allele for being tall is dominant to the allele for shorter heights.
There are three alleles for height that demonstrate incomplete dominance.

Answers

Answer:

Height is affected by multiple pairs of genes on different chromosomes.

Explanation:

The height is a quantitative trait, it is a phenotypic feature that presents a continuous range of variation in the population. The cumulative effects of many genes and the environment produce a normal distribution bell-shaped curve when they are drawn, this being a characteristic of quantitative genetic traits. Examples of quantitative traits include, among others, height, metabolic rate and weight.

The student could use their graph as evidence to support the argument that "The alleles for tall stature and short stature are codominant."

What is a Codominant gene?

Codominant: Autosomal codominant inheritance is the condition in which the heterozygote has the characteristics determined by both alleles (dominant and recessive).

What is allele?

Allele genes are those that occupy the same locus on homlogous chromosomes and are involved in determining the same character.

With this information, we can conclude that the genes alleles of the students in this class are codominant.

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what is a part of interphase A. cytokinesis B. telophase C. anaphase D. s phase

Answers

Answer:

D

Explanation:

I did it on my own soci know it's the answer

In the context of interphase, the S phase is the specific part where DNA replication occurs, contributing to the overall process of cell division and ensuring the transmission of genetic material to new cells and the correct option is option D.

Interphase is the longest phase of the cell cycle, and it is divided into three main stages: G1 phase, S phase, and G2 phase. Among these stages, the S phase is specifically responsible for DNA replication. It is during the S phase that the cell's DNA is duplicated in order to prepare for cell division.

During the S phase, the DNA helix unwinds, and the two strands separate. Enzymes and proteins then work together to synthesize new complementary strands for each of the separated DNA strands. As a result, two identical copies of the DNA molecule are produced.

The S phase plays a crucial role in maintaining the genetic integrity of the cell. By accurately duplicating the DNA, the cell ensures that each daughter cell formed during cell division receives an identical set of genetic information. This is vital for the proper functioning and development of organisms.

Thus, the ideal selection is option D.

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the clean water act ___
set maximum contaminant levels for drinking water
required industries to reduce or eliminate point source pollution in surface waters
established national ambient air quality standards
requires that pollution control devices be installed on cars and trucks and at factories

Answers

Answer: The Clean Water Act required industries to reduce or eliminate point source pollution in surface waters

The Investigation
It’s your first day shadowing a detective, and already it’s been interesting…if you can call the murder of a young woman interesting. You’ve been trying to detach yourself by reading the file, but you have interviews later this morning and you’re nervous. Going back to the file, you jot down some notes on what you know so far.
Melissa was a 35-year-old nurse-midwife with over ten years’ experience delivering babies both in hospitals, as well as in homes when risk for complications were low. She was healthy; her only medical condition was an allergy to bee stings. The body was discovered by her boyfriend when he came over for a planned dinner. The dinner – spaghetti – was laid out, but no cooking had begun. There was also a plate of cupcakes, with a bite out of only one of them. The boyfriend said Meleea had not mentioned feeling unwell when they spoke earlier in the day. She was, however, tired, and understandably upset about a long birth she had assisted with where a mother had died in childbirth.
The medical examiner did not have results yet, so you sketch out some questions you have for the interviewees.
1. Who would you interview, and what would you ask?
2. Do you have any hypotheses about what happened to Meleea? Write at least one or two possibilities.

Answers

1. I would interview the boyfriend and family members of the mother who died in childbirth. I would ask where they were at time time of death and if they have an alibi.

2. There could have been something put in the cupcakes, since only one bite was taken from a single one.

Implanting an electrode that supplies a weak electrical current to specific brain areas is called _____. It is useful in the treatment of _____

Answers

Answer:

Deep Brain Stimulation (DBS)

Depression, Uncoordinated body movements such as in Parkinson's disease

Explanation:

Deep brain stimulation is a surgical procedure in which a device that sends electrical impulses to the brain by means of lead wires connected to electrodes placed in the specific areas of the brain, is implanted in the body, typically the chest region.

This surgical procedure is usually required to treat diseases in which there is irregular and improper nervous stimulation of the brain resulting in various nervous disorders such as irregular muscle movements as in Parkinson's disease as well as depression.

The impulses sent from the stimulator device to the electrodes in the brain through the wires, serves to stabilize and normalize nerve signals sent to the brain.

Jessica weighs 125 pounds. She rode a bike at 17mph for 25 minutes. What is the calorie cost of this activity?
a. 185 calories
b. 178 calories
c. 180 calories
d. 190 calories
e. 188 calories

Answers

Answer:

b. 178 calories

ok so 17mph is 0.57 weight/min

so what were going to do is multiply 125 times 0.57 which is 7.125

then multiple that answer by 25 mintues: 7.125 x 25 = 178.12...etc

now if we round this up it stays as 178!

A circular double-stranded DNA molecule contains 4200 base pairs. In solution, DNA is in a B-form helix, with about 10.5 base pairs/turn. The DNA has 12 superhelical turns. What is its superhelix density

Answers

Answer:

The correct answer is - 3 × 10⁻²

Explanation:

first find LKo = length of BDNA/ 10.5 bp/turn

= 4200/10.5

= 400

now calculate Δ LK= LK - LKo

ΔLK = 412-400

ΔLK = 12

now, superhelix density  = ΔLK/LKo

⇒ 12/400 = 0.03

= 3×10⁻²

Thus, the correct answer is - 3 × 10⁻²

Which shows the most direct path that carbon can take through the carbon cycle? plant ® atmosphere ® animal animal ® plant ® atmosphere plant ® animal ® atmosphere atmosphere ® animal ® fossil fuel

Answers

The most direct path that carbon can take through the carbon cycle is: plant ---> atmosphere ---> animal.

What is the carbon cycle?

The carbon cycle refers to the various processes by which carbon flows through the ecosystem.

The carbon cycle involves processes which remove carbon and other processes which release carbon into the atmosphere.

The most direct path that carbon can take through the carbon cycle is plant ---> atmosphere ---> animal.

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Answer:

The answer is C) plant ® animal ® atmosphere

Explanation:

mechanism of the formation of urine

Answers

Explanation:

Filtration, Reabsorption, Secretion: The Three Steps of Urine Formation. The kidneys filter unwanted substances from the blood and produce urine to excrete them. There are three main steps of urine formation: glomerular filtration, reabsorption, and secretion.

 What is the most likely explanation for how speciation occurs?
A. It occurs by more than one method.
B. It occurs by gradual changes.
C. It occurs only by geographic isolation.
D. It occurs only by natural selection.

Answers

Answer:

The answer is (C) geographical isolation

Explanation:

Speciation is most likely to occur when populations become geographically isolated from one another, and come to inhabit environments that differ significantly from one another.

Which of the following best describes how ACh changes the ion permeability of the sarcolemma?
A) ACh activates acetylcholinesterase.
B) ACh entry into the axon terminal causes neurotransmitter release.
C) ACh binds to receptors in the junctional folds.
D) ACh entry into the muscle fiber causes Ca2+ to be released by the sarcoplasmic reticulum.

Answers

Answer:

C) ACh binds to receptors in the junctional folds.

Explanation:

The statement 'ACh binds to receptors in the junctional folds' best describes how ACh changes the ion permeability of the sarcolemma (Option C).

The sarcolemma is the plasma membrane of the muscle cells.

Moreover, acetylcholine (ACh) is a neurotransmitter that is released by motor neurons during muscle contraction.

After release, ACh binds to specific (nicotinic) receptors in the sarcolemma at the neuromuscular junctions (i.e., junctional folds).

These receptors are also called chemical-gated and/or ligand-gated channels because they are known to modify the ion permeability of the sarcolemma.

In conclusion, the statement 'ACh binds to receptors in the junctional folds' best describes how ACh changes the ion permeability of the sarcolemma (Option C).

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There are two properties of phospholipids that affect how tightly they pack together: the length of the hydrocarbon chain and the number of double bonds. The degree of packing, in turn, influences the relative mobility of these molecules in the membrane. Which of the following would yield the most highly mobile phospholipid (listed as number of carbons and number of double bonds, respectively)?
(a) 24 carbons with 1 double bond
(b) 15 carbons with 2 double bonds
(c) 20 carbons with 2 double bonds
(d) 16 carbons with no double bonds

Answers

Answer:

Explanation:It’s d

why was an Archea considered as a prokaryote ​

Answers

Answer:

Archaea is prokaryotic because it doesn't have a nucleus, nor any membrane-bound organelles. The reason why Archaea is different from Bacteria is it is more prominent, most of them are extremophiles.

because they are composed of cell which doesn't have nucleus and other some cell organelles and also considered as incomplte cell.

which type of research study compares disease rates among population groups?

Answers

Answer:

Epidemiological

Explanation:

Epidemiology compares disease rates among population groups, and attempts to identify related conditions or behaviors.

Answer: Epidemiological studies

what happens when we eat a lots of fried food​

Answers

Answer:

Eating a lot of fried food can cause a greater risk of developing heart disease, chronic disease, and obesity.

Eggs and sperm are examples of _____. zygotes somatic cells diploid cells gametes

Answers

answer: gametes .....

Answer:

gametes

Explanation:

gradpoint

The order Primates includes Group of answer choices monkeys, prosimians, humans and apes. only monkeys. only humans. only apes. only monkeys, apes and humans.

Answers

Answer:

monkeys, prosimians, humans and apes

Explanation:

The correct answer would be monkeys, prosimians, humans and apes.

Primate represents an order within the Mammalian class. The group consists of animals that fall into two sub-orders - the strepsirrhines which consist of lemurs, lorisoids, etc, and the haplorhines which consist of monkeys, apes, and humans.

Collectively, the apes and the monkeys are categorized as simians while all other animals primates are referred to as the prosimians.

Hence, monkey, prosimimians, humans, and apes tend to cover all the groups under the primate order.

Answer:

monkeys, prosimians, humans and apes

Explanation:

AMSCO

1. List five processes that are regulated by the hypothalamus: A. __________________________________________ B. __________________________________________ C. __________________________________________ D. __________________________________________ E. __________________________________________

Answers

Answer:

Answered below

Explanation:

The hypothalamus is a small part of the brain located at it's base near the pituitary gland. It has three main regions and each region contains different nuclei. These neurons perform different important functions in controlling the many physiological processes and in the maintenance of homeostasis in the body. Five of such processes that are regulated by the hypothalamus include;

1) The hypothalamus regulates the release of hormones by producing hormone releasing factors which trigger or inhibit the release of hormones form other parts of the body.

2) Regulation of body temperature.

3) Regulation of blood pressure and heart rate.

4) Regulation of appetite and weight control.

5) Regulation of the volume of body fluids.

Which structure of a paramecium is analogous to a “reserve copy” of all the cell’s genes

Answers

Answer:

micro nucleus

Explanation:

Describe an additional hypothetical situation that illustrates the "use it" portion of the use it or lose it principle. Be sure to describe the situation/behavior and explain why more bone is present under these circumstances. Also, describe an additional hypothetical situation that illustrates the "lose it" portion of the use it or lose it principle. Be sure to describe the situation/behavior and explain why less bone is present under these circumstances.

Answers

The first step of bone remodeling is the deposition of new bone cell to the destroyed portion. This is for maintenance of healthy bones

For a strong healthy body you have to take exercise regularly. This will replace unhealthy bone cell.

If you dont use your bone for support weight it will result of bone loss.. this is a situation of called lose it..

A population of birds lives on a small island. Another population of the same species lives on the mainland. The distance between the island and the mainland is too great for birds to fly back and forth. Recently, a series of sandbars and tiny islands have formed between the island and the mainland?

Answers

Answer:

Explanation:

Based on this information it can be said that this formation between the islands and the mainlands will most likely cause an increase in gene flow between the bird populations. Since the islands and the mainland are now connected birds from both these two different habitats will begin mating and producing progeny, thus causing gene flow to increase between these species.

Answer:

An increase in gene flow between the birds population.

Explanation:

List the functions of proteins

Answers

Answer:

Growth and Maintenance.

Causes Biochemical Reactions.

Acts as a Messenger.

Provides Structure.

Maintains Proper pH.

Balances Fluids.

Bolsters Immune Health.

Transports and Stores Nutrients.

If there are 12 chromosomes in an animal cell in the G 1 stage of the cell cycle, what is the diploid number of chromosomes for this organism?

Answers

Answer:

The gametes are haploid, having half the number of cells as compared to somatic cells. The gametes or sex cells produced by the organism will have 6 chromosomes if the organism has 12 chromosomes

Explanation:

The specialized soft tissue manipulation technique used to ease the pain of conditions such as fibromyalgia, movement restrictions, and temporomandibular joint (TMJ) disorders is known as _____.

Answers

Answer:

myofascial release

Explanation:

What are the values of a, b, and c in the quadratic equation 0 = 5x – 4x2 – 2? a = 5, b = 4, c = 2 a = 5, b = –4, c = –2 a = –4, b = 5, c = –2 a = 4, b = –5, c = –2

Answers

Hey there! :)

Answer:

The 3rd choice. a = -4, b = 5, c = -2.

Explanation:

Rearrange the quadratic equation given into the form 0 = ax² + bx + c:

0 = 5x - 4x² - 2 --> 0 = -4x² + 5x - 2

The corresponding coefficients for the a, b and c values are:

a = -4

b = 5

c = -2.

The given quadratic equation must be first rearranged in the form ax2- bx-c. From this, we can find the values of a= -4, b= 5, and c= -2

How can a quadratic equation be defined?

Quadratics can be defined as a polynomial equation of a second degree, which implies that it comprises a minimum of one term that is squared. It is also called quadratic equations. The general form of the quadratic equation is ax² + bx + c = 0.

Quadratic equations are commonly used in situations where two things are multiplied together and they both depend on the same variable. For example, while working with the area, if both dimensions are represented in terms of the same variable, you use a quadratic equation.

Throwing a ball, shooting a cannon, diving from a platform, and hitting a golf ball are all examples of situations that can be modeled by quadratic functions.

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