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
AnnZ [28]
3 years ago
11

Why is the ratio of male to female births roughly 50:50? help me please!!!

Biology
1 answer:
lina2011 [118]3 years ago
7 0

Answer:

This is because of how reproduction works in humans. Male and female sex cells are formed by a process called meiosis, where the diploid chromosomes divide and separate. And so the ratio of male to female births is also 50:50.

You might be interested in
Mr. and Mrs. Green have a daughter, Georgia, who was born at Riverside Community Hospital. Mr. and Mrs. Blue have a daughter, Be
Pani-rosa [81]

Answer:

Yes, Mrs Green is correct that Belle is her biological daughter

Explanation:

According to this question, Mr. and Mrs. Green is said to have a daughter, Georgia while Mr. and Mrs. Blue is said to have a daughter, Belle. Both daughters were born the same day. Hence, a controversy occured as Mrs. Green thinks that Belle is her biological daughter.

Based on the blood analysis, the following were obtained:

Mr. Green: Type A

Mrs. Green: Type A

Georgia: Type A

Mr. Blue: Type AB

Mrs. Blue: Type A

Belle: Type O

The genotype of the following blood types is as follows:

Type A - iAiA or iAi

Type B - iBiB or iBi

Type O - ii

Type AB - iAiB

From the analysis of blood types of Mr and Mrs Green, which are both type A, they can possibly produce a child with type A.

However, from the analysis of Mr. and Mrs. Blue, it is impossible to have a child with blood type O. However it is possible for Mr and Mrs. Green if they are both heterozygous (iAi × iAi). The punnet square is attached. Hence, Mrs Green is correct about her claim since Mr. and Mrs. Blue cannot have a child with blood type A.

8 0
3 years ago
Identify the four phases in the life cycle of a cell and place the events in order, starting with events that occur immediately
Sever21 [200]

The four phases in the life cycle of a cell and place the events in order, starting with events that occur immediately after the cell was born are:

  1. The first gap (G1)
  2. The synthesis (S)
  3. The second gap (G2)
  4. M

<h3>What is a cell?</h3>

A cell can be defined as simplest, basic, functional and structural unit of life

In conclusion, the four phases in the life cycle of a cell and place the events in order, starting with events that occur immediately after the cell was born are:

first gap (G1), synthesis (S) scond gap (G2) and M

Learn more about cells:

brainly.com/question/2622341

#SPJ1

3 0
2 years ago
Upon completion of seeding a flower and a vegetable, research and identify the optimum propagation conditions, such as, water an
d1i1m1o1n [39]

Answer:

Needs optimum environmental conditions.

Explanation:

Seedling, a flower and a vegetable needs suitable conditions for growth and development. All of the three stages of plant life cycle requires optimum water, fertilizers and light intensity in order to grow and develop at full speed. Seeds need a specific temperature in order to germinate. Most seeds germinate when the soil temperature is between 68 and 86 Fahrenheit. In the same way the plant also needs specific temperature for bearing flowers. All the stages requires optimum water in the soil for absorption.

6 0
3 years ago
Please help I WILL MARK YOU!!!!!
xz_007 [3.2K]
B. 2.883 million kilometer
7 0
3 years ago
Read 2 more answers
Based on Jill's observations, which conclusion could you draw?
Readme [11.4K]

Answer:

the warm water and abundant sunlight in the nertic zone limits the plankton population

7 0
3 years ago
Other questions:
  • Is a horse a herbivore or carnivore or omnivore
    11·2 answers
  • The most common molecule in the body is made up of what elements?
    14·1 answer
  • Why are animals important to an ecosystem?
    14·1 answer
  • Will you be able to survive for 20 days without food? you have plenty of water
    8·1 answer
  • Which best describes a bacterium?
    7·1 answer
  • When an earthquake occurs energy radiates in all directions from its source which is called the what
    12·2 answers
  • Which is not a plant defense
    15·1 answer
  • We know that DNA testing can
    11·1 answer
  • In radishes, the gene that controls color exhibits incomplete dominance. Pure-breeding red radishes crossed with pure-breeding w
    5·1 answer
  • This is a custom question for you.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!