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3 years ago

The largest lived star are expected to undergo fusion reaction for years

2 answers:

5 0

It was said that a few red dwarfs which were created after the big bang are still existing and is hypothesized to continue to live for years approximately 26

Alisiya [41]3 years ago

5 0

The largest lived star expected to undergo fusion is a trillion years

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Explain why it is that translation cannot happen, unless transcription happens first.

Aleks [24]

Answer:

Translation uses DNA as a template to direct the synthesis of a RNA which in turn serves as a template for Translation which template is used to direct the synthesis of a polypeptide chain.

Without transcription, there will not be a mRNA strand to act as a template for translation by the ribosomes to occur at all.

5 0

3 years ago

In humans, the eye color and hair color genes are located on different chromosomes. Brown eyes (B) are dominant to blue (b), and

Andrej [43]

Answer:

Man's genotype: Bbdd

Woman's genotype: bbDd

First child's genotype: Bbdd

Second child's genotype: bbDd

Explanation:

This is a dihybrid cross involving two genes; one coding for eye color and the other for hair color in humans. The allele for brown eye (B) is dominant over the allele for blue eyes (b) in the first gene while the allele for dark hair (D) is dominant over the allele for red hair (d) in the second gene.

According to the question, A man with brown eyes and red hair will possibly possess genotypes: BBdd or Bbdd while a woman with blue eyes and dark hair will possibly have genotype: bbDD or bbDd. Considering the fact that they produced children with recessive traits for both gene (blue eyes and red hair), it means that they are heterozygous for their dominant trait. This means that the ideal genotype for the man is Bbdd since he will produce gametes containing B and b alleles for the first gene while the ideal genotype for the woman is bbDd since it will produce gametes with D and d allele for the second gene.

Hence, a child with brown eyes and red hair will possess genotype: Bbdd since he/she cannot receive two dominant alleles for the first gene from both parents. A child with blue eyes and dark hair will have genotype: bbDd since he/she cannot receive two dominant alleles of the second gene from both parents.

3 0

3 years ago

How does the use of a scanning electron microscope differ from that of transmission electron microscopes

viva [34]

Answer: d

Explanation:

idk

4 0

3 years ago

Identify the process that transforms radiant energy to chemical energy which is stored in producers as glucose.

katrin [286]

C-photosynthesis . I think

8 0

3 years ago

Today, biologists classify organisms primarily by their

astraxan [27]

Answer:

It's DNA.

Explanation:

DNA is the most recent utility to determine the origin of an organism and it's powers compared to it't weaknesses.

Nowadays, it is the primary tool:

Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids.

6 0

2 years ago