1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
just olya [345]
3 years ago
12

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Biology
1 answer:
Aleksandr [31]3 years ago
4 0
Each male and female sex cell has 46 chromosomes in it. The number of chromosomes are reduced to half(23), so that when the sex cells combine, they also add up to 46(23+23). If the chromosomes did not reduce to half, the number of chromosomes would be off balance and the gamete would not survive.
You might be interested in
The ____________ in the alveoli is 40 mm Hg and that of the blood entering the pulmonary capillaries is ____________ . This caus
Oxana [17]

Answer:

The <u>PCO₂</u> -carbon dioxide partial pressure- in the alveoli is 40 mm Hg and that of the blood entering the pulmonary capillaries is <u>45 mmHg</u>. This causes <u>carbon dioxide</u> to diffuse down its partial pressure gradient from the blood into the alveoli.

Explanation:

Gas exchange is a physiological process that involves the entry of oxygen into the body and tissues and the exit of carbon dioxide, a product of metabolic reactions.

At the pulmonary level, gas exchange occurs between the alveoli and the alveolar capillary, and the diffusion of gases across the alveolar-capillary barrier is dependent on a pressure gradient due to the partial pressure of gases.

In the case of CO₂ the diffusion goes from where the partial pressure is higher to where it is lower, i.e. <u>from the alveolar capillary, where the PCO₂ is 45 mmHg, to the pulmonary alveolus, where the PCO₂ is 40 mmHg</u>.

Learn more:

Gas exchange brainly.com/question/4469204

6 0
3 years ago
Gila monsters are very well adapted to their homes. They have thick skin to prevent water loss and they burrow to escape the hea
irina1246 [14]

Answer:The answer is Desert

Explanation:The dead giveaway is thick skin to prevent water loss and burrow to escape the heat.

7 0
3 years ago
Read 2 more answers
What cell components are responsible for detoxifying the cell
Zinaida [17]

Answer:

SER

Explanation:

Smooth Endoplasmic Reticulum

These are fat-based molecules that are important in energy storage, membrane structure, and communication (steroids can act as hormones). The smooth endoplasmic reticulum is also responsible for detoxifying the cell.

6 0
3 years ago
A woman produces an egg with 24 chromosomes, including 2 copies of chromosome 21. If the egg is fertilized by a normal sperm, th
Zielflug [23.3K]

Answer:

47

Explanation:

We all know that gametes like egg cell and sperm have haploid set of chromosomes but here as per this question she has produced 2 copies of chromosome 21. For the sake of maintaining haploidy, she was supposed to have only a single copy of chromosome 21 as a result of which her egg cell was supposed to have 23 chromosomes not 24.

But, this is a case of non dis-junction. Also, in a normal sperm there are no such copies of any chromosome i.e. there is a haploid set of chromosomes. It means that sperm must be having only 23 chromosomes. So we can easily infer that when the egg cell and sperm will fuse, the zygote will have 47 chromosomes (24 from egg cell and 23 from sperm).  

6 0
3 years ago
1. What codes for a protein?
Harman [31]
1) mRNA
2) amino acids
3) transcription and translation
4) mRNA is made
5) messenger
6) to a ribosome in the cytoplasm
7) making amino acids
8) ribosomal
9) transfer
10) tRNA anticodon match up with codons on mRNA strand
11) codon
12) peptide bond

Hope that helps! :)
5 0
2 years ago
Other questions:
  • True or False: Wetlands and estuaries are critical ecosystems, but do not require protection.
    11·1 answer
  • I need help &gt; &lt; i think the answer is C
    10·1 answer
  • Why is respiration known as energy releasing process?<br>​
    9·1 answer
  • What are the two main types of cellular respiration
    10·1 answer
  • What is one property of viruses that makes it difficult to cure viral infections
    13·1 answer
  • Which of the following are characteristics of Chytridiomycota? Mark all that apply.(There are 4 that apply.)
    8·2 answers
  • What occurs when a ball falls from a balcony
    9·1 answer
  • Which correctly shows the process of photosynthesis?
    10·1 answer
  • Acid rain occurs when sulfur dioxide is he atmosphere is oxidized in the presence of nitrogen dioxide. Acid rain is an example o
    5·1 answer
  • What are two ways that a flood can negatively impact an ecosystem?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!