answersLogoWhite

0


Best Answer

Each sperm and egg cell are genetically different, because during meiosis, recombination by crossing over happens. Chromosomes exchange genetic material between TWO chomatids of homologous chromosomes out of four in a bivalent. Thus 50% gametes are parental and 50% new combinations.

User Avatar

Margarette Ratke

Lvl 13
2y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

4mo ago

No two gametes are exactly alike due to the random assortment of genetic material during meiosis, where genetic recombination and independent assortment result in unique combinations of genes. This variability ensures genetic diversity in offspring, increasing the chances of survival and adaptation to changing environments.

This answer is:
User Avatar

User Avatar

Wiki User

16y ago

There are several reasons: # Males carry an X and a Y chromosome, so half of their gametes will carry an X and half will carry a Y. # If a male is heterozygous for any alleles, then half his sperm will carry one allele and half the other. # Recombination shuffles combinations of alleles between homologous chromosomes, making it almost certain that none of his sperm will be identical. # Mutations occurring during meiosis will also add variation

This answer is:
User Avatar

User Avatar

Wiki User

11y ago

Each sperm and egg cell are genetically different, because during meiosis, recombination by crossing over happens. Chromosomes exchange genetic material between TWO chomatids of homologous chromosomes out of four in a bivalent. Thus 50% gametes are parental and 50% new combinations.

This answer is:
User Avatar

User Avatar

Wiki User

11y ago

because their cell membranes are unique, like snowflakes. Gametes undergo a slightly different version of meiosis during its formation and they have a different combination of parental chromosomes.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago
  • because there not the same
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why are no two gametes exactly alike?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Can two things be exactly alike?

NO!!


Do a female and a male gray wolf look alike or different?

They can look alike but, they don't look exactly alike. No two of any species are exactly the same.


Why don't any two people look alike?

there is no person that looks exactly alike but there is a such thing as a dopple ganger and that is a person that looks alot like you but not exactly .


What two books are exactly alike in the Old and New Testament?

none


What word used for two things exactly alike?

simile


what are two things exactly alike?

Things that are alike are the same. If two things are alike, it means they resemble or are similar to each other. For example, You and your sister might be alike in many ways, including your love for ice cream or chocolates.


No two of these 1983 to 85 most popular Christmas toys were exactly alike?

Transformers


Who are we psychologically?

Answer Since there are no two people exactly alike perhaps you have to ask yourself who you are psychologically, hopefully you will have your answer.


What is the line called that divides a shape into two parts that look exactly alike?

It is a line of symmetry


What are the release dates for The Drew Carey Show - 1995 No Two Things in Nature Are Exactly Alike 1-5?

The Drew Carey Show - 1995 No Two Things in Nature Are Exactly Alike 1-5 was released on: USA: 18 October 1995


What does no congruent sides mean?

"No congruent sides" means: a polygon or prism that has no two sides that are exactly alike.


How many tornadoes can be the same?

Only one. Like many things, no two tornadoes are exactly alike.