Explanation:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes.
Most human cells contain 23 pairs of chromosomes. One set of chromosomes comes from the mother, while the other comes from the father. The twenty third pair is called the sex chromosomes, while the rest of the 22 pairs are called autosomes.
Typically, biologically male individuals have one X and one Y chromosome (XY) while those who are biologically female have two X chromosomes. However, there are exceptions to this rule.
The sex chromosomes determine the sex of offspring. The father can contribute an X or a Y chromosome, while the mother always contributes an X.
The Y chromosome is one-third the size of the X chromosome and contains about 55 genes while the X chromosome has about 900 genes.
In genealogy, the male lineage is often traced using the Y chromosome because it is only passed down from the father.
All individuals carrying a Y chromosome are related through a single XY ancestor who (likely) lived around 300,000 years ago.
The Y chromosome contains a "male-determining gene," the SRY gene, that causes testes to form in the embryo and results in development of external and internal male genitalia. If there is a mutation in the SRY gene, the embryo will develop female genitalia despite having XY chromosomes.
Variation in the number of sex chromosomes in a cell is quite common. Some men have more than two sex chromosomes in all of their cells (the XXY variation is called the Klinefelter syndrome), and many men lose the Y chromosome from their cells as they age. Smoking may exacerbate this loss.
Some genes that were thought to be lost from the Y chromosome have actually relocated to other chromosomes.
Much of the Y chromosome is composed of repeating DNA segments. Specialized techniques are needed sequence and determine the arrangement of these highly similar segments.
Many health conditions are thought to be related to changes in genes expressed on the Y chromosome. This is currently an active area of research.
Any bodily movement produced by skeletal muscles that requires energy expenditure – including activities undertaken while working, playing, carrying out household chores, travelling, and engaging in recreational activity. *
Answer:
Physical activity
Explanation:
Physical activity can be defined as any bodily movement produced by skeletal muscles that requires energy expenditure – including activities undertaken while working, playing, carrying out household chores, travelling, and engaging in recreational activity.
Physical activity involves the movement of most parts of the body in performing various tasks.
What is binge drinking?
Answer:
basically, drinking an excessive amount of alcohol in a short period of time
Explanation:
hope it helps
have a great day
:)
Match the following. Match the items in the left column to the items in the right column.
1. Whole grain pasta
fruits
2. Medium potato
vegetables
3. Orange
dairy
4. Yogurt
protein
5. Nuts
grains
Answer:
1. whole grain pasta is grains
2. Medium potato is vegetables
3. Orange is fruit
4. Yogurt is dairy
5. nuts is protein
Explanation:
How is the hunger hormone of an overweight or obese person different from that of the host ?
Answer:Ghrelin mRNA level rises significantly after estrogen administration in cultured stomach cells [65]. Estrogen has been well documented to regulate food intake by modulating meal size and to stimulate growth hormone secretion. These effects may be partially mediated through ghrelin.
How does ghrelin cause obesity?
Ghrelin stimulates the brain, which leads to an increase in appetite, and it slows metabolism and decreases the body's ability to burn fat. Ghrelin also favors the amassing of fatty tissue in the abdominal area.
8 Ways to Keep Your Leptin Levels Regulated
Get enough fibre. ...
Limit fructose consumption. ...
Consume complex carbohydrates. ...
Eat protein for breakfast. ...
Take omega-3. ...
Avoid severe calorie restriction. ...
Perform H.I.I.T (high intensity interval training) ...
Get more sleep.
Explanation:
BRAINLIEST Which of the following is true?
a) Slow-twitch muscle fibers rapidly produce ethyl alcohol.
b) Fast-twitch muscle fibers rapidly produce lactic acid.
c) Fast-twitch muscle fibers rapidly produce acetyl-CoA.
d) Slow-twitch muscle fibers rapidly produce lactic acid.
Fast-twitch muscle fibers rapidly produce lactic acid.
How does lactic acid produced in muscle ?
Lactic acid is mainly produced in muscle cells and red blood cells. It forms when the body breaks down carbohydrates to use for energy when oxygen levels are low.
What Does Lactic Acid Do?Lactic acid is formed within the muscle cells during glycolysis to clear the cells of accumulating pyruvate, a by-product of glycolysis. While still in the muscle cells, the hydrogen ion is what is responsible for lowering the pH of the muscle tissue, making it more acidic.
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Which statement is false?
HELP PLEASE FAST!!!
An STD can make it difficult to have children in the future.
Teen fathers often do not finish high school.
There is no significant consequence in career and earning potential for teen fathers.
Pregnancy and STDs are the most serious health consequences of sexual activity.
Answer:I think it is the 3rd one it makes most sense
Explanation:
A _______ curve is when only the entrance to the curve is visible - you have no idea what the rest of the curve looks like
Answer: Blind curve
Explanation:
A blind curve on the road refers to a curve where the driver can only see the entrance of the curve but the rest of the curve is hidden from view thereby making the driver blind to the whole curve.
These curves can be quite dangerous if not approached carefully as they can lead to accidents when for instance cars that didn't see each other collide. For this reason there are many warning signs when approaching such curves.
is a tomato a fruit or a vegitable
Answer:
Vegetable
Explan
Which of the following may prevent chlorine bleach from sanitizing?
an iodine mixture
an overloaded sink
not enough water
very hot water
Answer:
Very hot water
Explanation:
It will melt the substance
Very hot water may prevent chlorine bleach from sanitizing. Thus, option D is correct.
What is the use of sanitizer in water tank?To use water in your third sanitizing sink, the water must be 171 degrees Fahrenheit or hotter. In order to clean more effectively, a 3-compartment sink is employed; it can be divided into areas for washing, rinsing, and sanitising. In essence, the sanitising procedure comes last.
First, we used a fresh detergent at a predetermined temperature set by the manufacturer. After that, we rinse with hot, clean water to get rid of the clean detergent. The third step involves sanitising using a solution that is applied in accordance with the manufacturer's instructions. So in essence, the third sink, or stage, is where you sanitise everything.
Therefore,Chlorine is a choice material in water purification because of its track record in the removal of pathogens from water.
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What parts of the body do genes
Answer:
chromosomes/inside cells
Explanation:
Genes are found on tiny spaghetti-like structures called chromosomes. Chromosomes are found inside cells. Your body is made of billions of cells. Hope this helps! :)
Answer:
The nucleus
Explanation:
The nucleus holds DNA
WHY did THE annyiong CHICKEN cross THE road
Answer:
TO get TO the OTHER side?
Explanation:
Answer:
Q. Why did the Roman chicken cross the road?Explanation:
A. She was afraid someone would Caesar!haha give brainlysConflict can be
a.) intentional
b.) unintentional
c.) prevented
d.) all of the above
Answer:
D
Explanation:
you can stop it
you can pick an argument
you can accidentally start one
Find the unknown length. Round to the neFind the unknown length. Round to the nearest tenth if necessary.
\
\\\
\
arest tenth if necessary.
Answer:
this doesnt make sense haha
Explanation:
HELP MEEEEEEEEE PLSSS
Which of the following does NOT go into medical school applications?
O Transcripts
O Personal essay
O Summary of skills and abilities
O Letters of recommendation
Right now I’m going through a lot of self doubt and anxiety.
So does anyone have some advice to help?
Answer:
Anxiety things that really help is being with people you love and you enjoy being with!
relaxing baths!
teas really help!
movie are really nice and taking time to yourself!
Aggressive communicators tend to be:
Answer: Attack and criticize others in a loud voice
Explanation: Aggressive communicators are those who transmit a message in an aggressive way, where they do not take into account how the other person may feel. They can humiliate, speak ill of others, and blame.
Aggressive communication is a way of demonstrating the weaknesses or fears that the person who communicates has since he uses aggression as a form of shield and responds to something that he perceives as an attack or threat.
what do you mean by community based medical profession
Answer:
i think hospitals...... mabey
What is the difference between infertility and sterility?
Answer:
Explanation:
The difference between sterility and infertility is, sterility is an inability to conceive a child. Infertility is the reduced or lack of ability to conceive and carry a child
how can stress lead to depression?
In my opinion having to much stress on you and not anytime to relax and chill can lead to depression. Not having enough sleep, being bullied, or having to much work can lead to depression. Hope it helped!
can MDMA can cause problems with the body’s ability to control temperature, especially when it is used in active, hot settings, and may even lead to death.
nose
Explanation:
si supiera te ayudo
what is a mixed outbreak disease?
Answer:
Its a mix of diseases
In a paragraph, define Type 1 diabetes and discuss factors that contribute to the development of Type 1 diabetes. How is Type 2 diabetes different? (Site 1)
Answer:
Explanation:
type 1 diabetes is often found in younger people. the biggest risk factor is someone in your biological family having diabetes type 1 in which you would get it genetically. one way that diabetes type 1 and 2 are different are the fact that type one is not cured but only maintained using insulin, while type two can be cured by changing your lifestyle and being more healthy.
how do nutritional needs need to change overtime?
Answer:c
Explanation:
C
Moritz rescued his friend from a dangerous ocean rip current by pulling his friend from the water. Which activity most likely prepared him for this?
enrolling in a class about swimming safety
taking a CPR training class
watching online shows about being a lifeguard
talking with friends who are lifeguards
Answer:
enrolling in a class about swimming safety
Explanation:
Answer:
A: enrolling in a class about swimming safety
Explanation:
The answer is not B because Moritz's friend wasn't unconscious. The answer is not C or D because watching a show or talking with friends who are lifeguards won't help you save anybody unless you have experience and know how.
Hope this helped ;)
Keeping training levels the same will...?
A. decrease the level of fitness.
B. maintain the level of fitness.
C. increase the level of fitness.
D. cause injury.
Children with fetal alcohol syndrome face numerous alcohol-related birth defects, such as mental difficulties, but rarely have problems with self-control or language outbursts. Please select the best answer from the choices provided. T F
Answer:
F
Explanation:
Answer:
False
Explanation:
Why should youth limit their consumption of caffeine?
Answer:
Too much caffeine could lead to body problems.
Explanation:
Caffeine may also cause the body to lose calcium. Consuming too much caffeine could lead to bone loss over time.
Answer:
The youth need to limit their consumption of caffeine because they are already pretty hyped up.
Explanation:
Little kids wake up early, yes, but they don't need caffeine. Their parents make them go to bed early, and that is partially why thy wake up early. They also eat a whole lot of sugar throughout the day as well.
A dish that relies on deep-frying is _______.
Answer:
Examples of food that can be deep-fried include meat, poultry, fish and vegetables. Fish and chips, for instance, combines deep-fried fish and deep-fried potatoes. French fries, doughnuts, onion rings, and hushpuppies are common deep-fried foods.
Answer:
Meat: Seafood – shrimp, squid, clams, scallops, oysters. ...
Vegetables
Potatoes – fries (chips), chips (crisps)
Allium (onion family) – onions, leeks.
Green vegetables.
Bread and dough: Bread-wrapped – dumplings, egg rolls, empanadas
Explanation:
100 Points
(Select the Correct Answer)
According to Pilates, the most crucial part of your body is the core.
A. True
B. False
Answer: The brain is arguably the most important organ in the human body. It controls and coordinates actions and reactions, allows us to think and feel, and enables us to have memories and feelings—all the things that make us human.
Explanation: False