Answer:
The correct answer is ''carbon dioxide, water vapor and nitrogen.''
Explanation:
About 4.5 billion years ago, Earth was a very geologically active planet. So many volcanic fumes formed the primitive atmosphere, which was mostly made up of water vapor, carbon dioxide, sulfur, and nitrogen. At this point, oxygen was barely present and the oceans did not yet exist. The primitive atmosphere is the one before the Precambrian, it was reductive, that is, it lacked free oxygen, and only had ammonia, methane and hydrogen, the high temperature of the atmosphere in its early stages facilitated the reaction of these gases to form organic compounds from which life may have emerged. UV rays passed, because ozone did not exist.
Answer:It decreases
Explanation:As the energy is transferred throughout the levels the energy decreases by 10.
A. T-A-C-G-A-T
A and T pair together, and G and C pair together. There are no U’s because U’s are in RNA, not DNA.
Answer:
The correct answer would be X-linked dominant.
X-linked dominant inheritance is a type of inheritance in which a dominant gene is carried on the X chromosome.
In this type of inheritance, if a father is diseased and mother is unaffected, then all the daughters would carry the disease as daughters get an X chromosome from their father.
No son would be diseased as they only get a Y chromosome instead of the X chromosome from father.
When the mother is affected (heterozygous, that is, only one X chromosome carries dominant allele) and father is unaffected, then half of the sons and half of the daughters would carry the disease as mother passes X chromosome to both the son and daughter.
Answer:
Causes fetal gonads to develop as testes shortly after fertilization.
Explanation:
The SRY gene is a sex-determining gene that is located on the Y chromosome. It is responsible for the production of a protein which is a testis-determining factor that enhances the development of a testis.
The SRY gene plays an important role in gender determination. Mutations that takes place in the SRY gene give rise to XY females with gonadal dysgenesis which is a developmental disorder of the reproductive system in the male or female. The individuals appear to be normal females at birth, but during the stage of puberty, they do not develop secondary sexual characteristics, they do not menstruate, and have fibrous gonads that does not contain eggs.
