From lowest to highest hierarchy it would be: planet, star, solar system, galaxy.
Answer:
a) There are lots of genes on chromosome 1 could be affected, and the gametes could be imbalanced (missing segments of DNA or whole chromosomes)
b) Roughly 50%
c) No. I would advise that the couple undergo preimplantation genetic diagnosis, so that a zygote carrying the normal copy of chromosome 1 could be selected.
Explanation:
Chromosome 1 is one of the largest and most gene rich chromosomes. An inversion that covers 70% of its length would cover lots of genes.
While an inversion on its own would not seem problematic (as all the genes on the chromosome are still there), when it comes to meiosis, the sister chromatids would not be able to correctly align, and crossing over would further complicate this. It could also lead to unbalanced gametes missing entire parts of the chromosome. Therefore, there are likely numerous genes that will be affected and messed up by the inversion.
This could explain the high incidence of past still births, as if lots of genes are affected, and non-functional, the pregnancy would be rendered non-viable, or highly deleterious causing premature death.
b) There is a 50% chance of a child inheriting the defective copy of chromosome 1 (and 50% of a chance of them inheriting the normal chromosome 1. Therefore, there is likely a 50% chance that future offspring would be affected by defects
c) No. I would advise that the couple undergo preimplantation genetic diagnosis. In this, the couple undergoes in vitro fertilization (IVF). When embryos are produced through IVF, they can then be tested for the presence of the abnormal chromosome. Embryos will only be implanted into the mother if the normal chromosome 1 is present.
Answer:
The answer includes all of the options.
Explanation:
Some of the major changes that happened in agriculture during the 1920s include the use of electrical tools and vehicles and chemical fertilizers. These changes along with their low availability to the average farmers made it harder for them to compete with agricultural corporations who could use these advanced methods easily. Hybrid seeds were also used by corporations to get increase the yield of the fields. The answer includes all of the options.
I hope this answer helps.
Specifically, during cellular respiration, the energy stored in glucose is transferred to ATP (Figure below). ATP, or adenosine triphosphate, is chemical energy the cell can use.
<h2>
Correct Answer is (B)</h2>
Explanation:
(B) A response to one biotic factor in the environment.
- Three distinctive natural elements influence the opening and shutting of a plant stoma <em>such as light, water and carbon dioxide fixations. </em>
- Plant stomata close in haziness and when conditions are dry. Since plant cells need carbon dioxide for photosynthesis, carbon dioxide fixations are another key factor.
- The Stomatal pores in plants The solutes inside them by opening and The measure of water and shutting their guard cells utilizing osmotic weight.
- The end goal for plants to deliver vitality and keep up cell work, their cells experience the profoundly complex procedure of photosynthesis. Basic right now the stoma.
- <em>A few ecological elements influence stomata opening, including hormone, light quality and force, air moistness, barometrically CO2 focus, biotic and abiotic stresses.</em>
