In humans, what determines the sex of offspring and why?.

Answers

Answer 1
Answer:

Females have two X chromosomes in their cells, while males have both X and a Y chromosomes in their cells. Egg cells all contain an X chromosome, while sperm cells contain an X or Y chromosome. This arrangement means that it is the male that determines the sex of the offspring when fertilization occurs.

Related Questions

Organelles in prokaryotic cells include the
(a) mitochondria.
(b) cytoskeleton.
(c) Golgi complex.
(d) none of the above

Answers

Answer: actually (d) none of the above

Choose all that apply. Which of the following is true in a comparison of your skin cells to your kidney cells?

1) conduct translation differently
2) contain different DNA
3) contain different chromosome
4) transcribe many different genes
5) conduct replication differently
6) have different transcription factors
7) contain different genes

Answers

Given our understanding of the mechanisms behind genetic expression, we can confirm that when comparing skin cells to kidney cells, the only correct option is option 4 which states that the cells "transcribe many different genes".

The human genome encodes for every gene in the human body. This genome sequence is stored in the chromosomes of cells. These chromosomes are identical for every single cell in the human body. Therefore, every cell contains the same DNA, genes, and transcription factors in its chromosomes.

What allows each cell type in the human body the ability to differentiate from one another and complete vastly different functions is the way in which these genes are expressed. Though every cell contains the entire genetic code, only some genes for each cell are transcribed, which results in a different combination of proteins in each cell and leads to the difference between skin and kidney cells (as just one of many examples).

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Which butterfly-shaped portion of the brain is responsible for spinal reflexes?

Answers

Answer:

b. Gray matter

Explanation: is correct

What are the two test for water

Answers

Answer:

The Standard Drinking Water Test has two components: Microbiological test and chemical quality test.

cuales son las adaptaciones para el ecosistema acuatico

Answers

Answer:

diseño aerodinámico, aletas

To all bug experts, what is this bug?

Answers

Answer:

I think it is an emerald cockroach

Which diagram below shows the process of meiosis - Diagram A or Diagram B? How do you know? Explain all the details that prove you are correct.

Answers

B. Meiosis is division of a cell from diploid number of chromosomes to haploid number of chromosomes. This type of division is used for gametogenesis-or making of sex cells. If we look at the starting number of chromosomes, we see 4, then at the end of the diagram we see four cells each with 2 chromosomes.

From the diagram, meiosis is shown by the diagram in B in the question.

What is meiosis?

Meiosis occurs when a cell divides in such a way that each daughter cell gets only half of the number of chromosomes in the parent cell.

Looking at the cell division in diagram B, we can see that there are only two chromosomes in each daughter nuclei out of the four chromosomes in the parent nuclei hence that us meiosis.

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#SPJ6

When we inhale what do we bring in?

Answers

Answer:

oxygen

Explanation:

We breathe in oxygen into our lungs and let out carbon dioxide.

You inhale oxygen and exhale carbon dioxide

How does the physical environment in a tide pool change between tides?

Answers

Because the water goes up and down so the tide does too
I’m not sure but I hope it’s correct

What is the difference between an asthma cause and a trigger?

Answers

Answer:

Causes refer to the underlying factors and reasons that lead to asthma. Triggers mean the conditions that aggravate or usher in an asthma attack. Knowledge of both causes and triggers will help you manage your asthma.

I hope this helps.

Best answer gets brainliest

what does unequal division ensure?

Answers

Answer: unequal divisions by design provides a unique synthetic system capable of making decisions on its future fates and states by selectively utilizing two types of divisions.

Explanation:

Stem cells make decisions on either self-reproduction or differentiation by selectively utilizing equal vs. unequal cell divisions Stem cells reproduce themselves by equal divisions. However, they undergo a one-round of an unequal division to reproduce one daughter stem cell which is identical to the original and to produce the other daughter cell that is destined to differentiate to a specialized cell type, thus differentiating into non-stem cell lineages – the process known as “asymmetric cell division”. The differentiated cells reproduce themselves via equal divisions. Therefore, the ability to control equal vs. unequal divisions by design provides a unique synthetic system capable of making decisions on its future fates and states by selectively utilizing two types of divisions.

Over the last two decades, several synthetic cell division systems were synthesized However, none provided a system where equal vs. unequal divisions could be controlled by design. Hence, we set out to synthesize an artificial cell system where we can control equal vs. unequal divisions by design.

what is the function of the organelle identified as #6 in the picture it is mostly brown folded over and is in the lower right part of the cell

Answers

Answer:the presence of a true nucleus

Explanation:

Q2.A cook prepares a fresh fruit salad by cutting up a variety of fruits and placing them in a bowl
with layers of sugar in between. After two hours the fruit is surrounded by syrup
(concentrated sugar solution)
freshly-prepared fruit salad
Explain, as fully as you can, why syrup (concentrated sugar solution) was produced after
two hours.

Answers

Answer:

Because its juicy

Explanation:

The sugar absorbed the water.

what do both the rho-dependent and rho-independent mechanisms of termination have in common?

Answers

In both cases, a stem loop structure causes RNA polymerase to pause. In ρ dependent termination, ρ protein is required to interact with the open complex at this point, dissociating the RNA-DNA hybrid.

give 3 examples or where potential energy was convertedto kilinetic energy

Answers

Answer:

give 3 examples or where potential energy was convertedto kilinetic energy.

A note to Charles Darwin about his findings

Answers

Answer:

Dear Charles Darwin,

My name is ___ and I was wondering how all of your theories and findings came to your comprehension of evolution. I have heard and learned about your evolution theories and would like if you could answer some of my questions. What first sparked the interest in evolution? Do you truly believe that everything evolves over time? How do your findings contribute to your theories of evolution? Thank you for your time to answer these questions.

Sincerely ___

Explanation:

Charles Robert Darwin was a British naturalist, geologist, and biologist best known for his contributions to evolutionary science. His dissertation that all kinds of life are derived from a common ancestor is widely accepted today and is considered a basic concept of science.

How can we make larger drawings ? Can someone tell me the guidelines please help

Answers

Answer:

you should have skills of drawing observe the diagram

Answer:

by using a GRID to scale

Explanation:

step by step

(vii) All the activities of a cell is controlled by?​

Answers

Answer:

nucleus

Explanation:

The nucleus controls all of the cell's activities, such as growth and metabolism, using the DNA's genetic information. Within the nucleus is a smaller structure called the nucleolus, which houses the RNA (ribonucleic acid).

https://www.britannica.com › list › 6...

Why can populations of invasive species increase rapidly in new environments

Answers

Answer:

they have no preditors  in that current enviroment that can or is used to eating them so they just grow with no resistance    

Explanation:

where do plants store the converted energy of sunlight

Answers

they store the energy of sunlight in chloroplasts

Why is it important that mitosis occurs like this

Answers

Answer: The cell divides upon these processes during a process known as mitosis. In mitosis, two daughter cells are formed. It is important that each of the daughter cells contain genetic information that is identical to that of the mother cell, as well as that there be no mutations. Mitosis is Important for three main things:

> Growth

> Repair

> Reproduction

hope it helps.

To be honest i didn't get your question but i gave the basic info for Mitosis

Please pick me for Brainliest

Explanation:

Item 5
What molecule that is created during photosynthesis provides energy for cellular processes?

ATP

chlorophyll

glucose

oxygen

Answers

Answer:

Glucose is the answer because it is one of the end products of photosynthesis which is used to generate ATP for the cell through the first process of cellular respiration glycolysis

Answer:

glucose

Explanation:

took test

Where is the enzyme amylase found?

Answers

Answer:

b. In saliva and the pancreas

Explanation: is the correct answer

Three types of macromolecules are mentioned in the video that are digested and ABSORBED in the small intestine. What do they all get absorbed into first?

Lacteals

Epithelial cells

Capillaries​

Answers

Given what we know about the biology of the small intestine, we can confirm that the macromolecules are being absorbed into the "Epithelial cells".

The small intestine is in charge of absorbing the nutrients, which we require in order to survive and perform even the most basic metabolic processes, from the food that we ingest. In order to be able to perform this function, the cells in question have specialized epithelium which consists of Microvilli.

Microvilli can be thought of as membrane protrusions that serve to expand the surface area of the epithelial cells. This allows the cells to have a greater area through which to absorb nutrients such as the macromolecules mentioned.

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In the GAL gene system, ________ are cis-acting regulatory elements, and the ________ protein is a trans-acting regulatory protein.

Answers

Answer:

UASG; Gal4

Explanation:

Which processes contribute to the formation of chemical sedimentary rocks?

Organisms decay in a solution.
Minerals dissolve and crystalize.
Rock fragments squeeze together.
The remains of plants and animals

Answers

Explanation:

Rock fragments squeeze together

Saved
When the lac repressor binds to the lac operator site, RNA polymerase is prevented from transcribing which gene(s)?

Answers

dna is the answerrrr

Match each pollutant with its source.

Match Term Definition
Carbon dioxide A) made when it reacts to oxygen
Nitrogen oxides B) released when burning coal or gas
Volatile organic compounds C) emissions from oil refineries
Sulfur oxides D) cleaning, disinfecting, and degreasing products

Answers

The pollutants and their respective sources include the following

Carbon dioxide - This is released when burning coal or gas. The burning of

fossil fuels such as coal or gas releases the greenhouse called

carbondioxide and is responsible for increase in infrared absorption to the

earth.

Nitrogen oxide:  This is made when nitrogen reacts with oxygen under the

appropriate conditions.

Sulfur oxides : This is contained in emissions from oil refineries. This is

because crude oil which is the major raw material in refineries have large

amounts of sulphur in them which reacts with oxygen to form sulfur oxides.

Volatile organic compounds: These are contained in cleaning, disinfecting,

and degreasing products.

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The __________ is the complex organ that enables people to complete many actions and processes. A. heart B. brain C. spinal cord D. nervous system

Answers

B. Brain is the answer I am pretty sure

Answer:

B brain just took the quiz 2021

Explanation:

George damaged a cranial nerve. His quality of life has decreased because he is no longer able to smile, move his mouth when he talks, or taste well. Which of the following nerves did George damage?

Answers

Answer:

b. Facial nerve is correct

Explanation:   here is some googlied info as well

The facial nerve (the labyrinthine segment) is the seventh cranial nerve, or simply CN VII. It emerges from the pons of the brainstem, controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue.

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