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
Bingel [31]
3 years ago
14

What percentage of human sperm cells carry an X chromosomes

Biology
1 answer:
topjm [15]3 years ago
4 0

Answer:

50%

Explanation:

because 50% comes from the male and 50% from the female

You might be interested in
A couple has three children, two without sickle cell anemia and one with sickle cell anemia. The mother has sickle cell anemia a
bezimeni [28]

Answer:

Explanation:

The sickle cell allele is recessive. Hence, in order for any child of the couple to have sickle cell anemia, such a child will have to inherit an affected allele each from the two parents. This means that both the father and the mother must have affected alleles in their genotypes. In other words, two sickle cell alleles are required for the abnormality to manifest.

Let us assume that the sickle cell allele is represented by S and the normal allele is represented by A.

Now, it is established that the mother has sickle cell anemia, her genotype would be SS. The father does not have sickle cell, his genotype can either be AA or AS.

Assuming the genotype of the father is AA:

          SS   x   AA

      AS   AS   AS   AS

<em>All the children would be normal in this case.</em>

Assuming that the genotype of the father is AS

           SS    x    AS

      AS   SS   AS   SS

<em>50% of the children would have sickle cell while the remaining 50% would be normal.</em>

<u>Therefore, in order to produce children with sickle cell, the father has to be AS, otherwise, he has to be AA.</u>

<u><em /></u>

6 0
3 years ago
What challenges do you think parasites face in their survival? How can these challenges affect the parasite?
Greeley [361]
Parasites need a host. If a host tries to get rid of the parasite or kill it, then the parasite either has to leave the body or die.
7 0
3 years ago
Select all that apply.
Klio2033 [76]
The lysosomes<span> are the animal cell's "garbage disposal", while in plant cells the same function takes place in </span>vacuoles<span>. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells.</span>
3 0
3 years ago
Read 2 more answers
HURRRYYYY <br> Agriculture uses large amounts of water for irrigation. true or false
Sladkaya [172]
THE ANSWER IS TRUEEEEEE
6 0
3 years ago
Read 2 more answers
Describe the scientific evidence supporting the idea that all life has evolved from a common ancestor. Include a little bit abou
Ksenya-84 [330]
Umm whaleee i believe the first “life” which developed is bacteria.

for humans, we are evolved from the great apes. we are called homo sapiens
5 0
3 years ago
Other questions:
  • Tumors that will not spread throughout the body are _________________, and those that do spread are termed ______________.
    14·1 answer
  • 5l=?ml.........................
    13·1 answer
  • How many cells are in a single drop of blood? explain your answer.
    14·1 answer
  • The most common elements for life are
    7·2 answers
  • To collect impressions found in dust, scientists use a device that:
    12·1 answer
  • The outer core layer is made up of iron and some nickel? True or False?
    15·1 answer
  • the results Mendel obtained during his experiments. It showed that if you cross two plants that were true-breeding for different
    7·1 answer
  • What does "sole" mean in this passage
    13·2 answers
  • Realiza un esquema de la clasificación de los nutrientes, y enliste los alimentos en los que consten características, dónde se e
    6·1 answer
  • A male and female Oompah have the same genotypes: blue face (ff) and big feet (Ll). Determine what they’re offspring may look li
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!