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Lelu [443]
2 years ago
14

In crocodiles, the sperm and egg combine inside the body of the female. Then the female lays the eggs, and the young develops ou

tside her body. Which type of reproduction takes place? asexual reproduction internal fertilization external fertilization
Biology
2 answers:
ad-work [718]2 years ago
6 0

Answer:

Internal fertilisation

Explanation:

The fact that the sperm and the egg fused to create a zygote while inside the female body, is reason to state that the answer is "<u>internal fertilisation</u>".

Asexual reproduction does not occur in crocodiles, and the other option of external fertilisation would occur in frogs, where the female lays eggs in a pond, and a male frog will fertilise it at a later stage.

Ivanshal [37]2 years ago
5 0
Asexual: Offspring arise from single organism
Sexual: Genetic information from two organisms (male and female), where one produces a motile gamete (male) that travels to fuse with a larger stationary gamete produced by other (female).
Internal Fertilization: Union of an egg cell with a sperm during sexual reproduction inside the body of a parent.
External Fertilization: The sperm cell reunites with the egg cell in the open, rather than inside the body of a parent.

:) I'm sure you can figure it out from the information I stated above
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A male is heterozygous for the trait that produces freckles on the skin, and he has freckles. if he marries a woman who is also
kakasveta [241]
<span>F- allele for freckles
f- </span><span>allele without freckles

1) The man is heterozygote and has freckles, its indicating that the allele for freckles is dominant.
A cross between him and a woman who is also </span><span>heterozygote: Ff x Ff
it would result in the following probabilities:
- 1/4 - homozygote with freckles: FF
- 2/4 - </span><span>heterozygote with freckles: Ff
- 1/4- </span><span>homozygote without freckles:ff

Their son would have a probability of 75% of being born with freckles.


2) The cross resulted in this probabilities:
</span><span><span>- 1/4 - homozygote with freckles: FF
- 2/4 - </span><span>heterozygote with freckles: Ff
- 1/4- </span><span>homozygote without freckles:ff
So, the chance of being born heterozygote for this gene is 2/4, which is the same as half (50%).
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