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3 years ago

How old is the earth and the rest of thr other planets in space

Biology

1 answer:

Free_Kalibri [48]3 years ago

6 0

<h3>Ages of planets and others in our Solar System and the Milky Way:</h3>

Planet Earth:

Earth is $4.543$ billion years old

Other Planets:

Venus is 4.503 billion years old

Mars is 4.603 billion years old

Neptune us 4.503 billion years old

Saturn is 4.503 billion years old

Uranus us 4.503 billion years old

Mercury is 4.503 billion years old

Jupiter is 4.503 billion years old

other:

Milky Way is 13.51 billion years old

Solar System is 4.571 billion years old

Moon is 4.53 billion years old

Sun is 4.603 billion years old

Pluto (dwarf planet) is 4.46-4.6 billion years old

Asteroid Belt is about 4.6 billions years old

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3 years ago

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3 years ago

Which question can be answered using the scientific progress

Vikki [24]

The answer is D

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3 years ago

A husband and wife both have cleft chins, and when you look at their four children, three also have cleft chins; however, one do

Reptile [31]

Answer:

B- A cleft chin is due to a dominant allele

Explanation:

A husband and wife both having the phenotype for cleft chin and producing an offspring without a cleft chin, indicates heterozygousity in their genotype.

With the heterozygous genotype however, they both expressed the phenotype for cleft chin, indicating that the allele for cleft chin is dominant over the allele coding for normal chin.

Since both parents are heterozygous for cleft lip, the sequence of genotype in their offspring will be:

25% chance of having homozygous cleft chin
50% chance of having heterozygous cleft chin
25% chance of having homozygous normal chin

Because of the dominance of the cleft chin allele, both homozygous and heterozygous forms of the cleft chin allele, will be expressed in the offspring and only the offspring homozygous for normal chin will not express this allele.

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3 years ago