Answer:
an essential nutrient
Explanation:
cholesterol is a needed nutrient in the body
The inheritance pattern of a recessive maternal effect gene in Drosophila. In maternal effect, the offspring’s phenotype is under the control of nuclear gene products present in the mother's egg. In this example, the presence of the a + allele in the mother is required for proper wing development in the offspring. In the pedigree, individuals who are wingless are indicated by a shaded symbol. The phenotypes and genotypes are only provided for the first generation (individuals 1 and 2).What are all the possible genotypes for individual 1's mother?
1. mom-a/a dad-a+/a
2. offspring: a+/a or a/a
1. a +/a +
2. a +/a
3. a/a
Answer:
m,m
Explanation:
Selective breeding of individuals with similar traits to produce genetically similar offspring is called __?
Answer:
artificial selection
Explanation:
Selective breeding, also known as artificial selection, is a process used by humans to develop new organisms with desirable characteristics. Breeders select two parents that have beneficial phenotypic traits to reproduce, yielding offspring with those desired traits
What is in the cloud of negatively charged particles that surrounds an atom?
O A. Neutrons
B. Protons
C. Proteins
O D. Electrons
Answer:
electrons
Explanation:
bc i know big brain stuff
Answer:
D
Explanation:
We are looking for a negatively charged particle that is part of the cloud around an atom. Let’s analyze each answer choice.
Neutrons are neutral, and they have no charge. Therefore, A is incorrect.
Protons have a positive charge, so B is also incorrect.
Proteins are not part of the atom or in the cloud that surrounds one, so choice C is wrong as well.
Electrons are negatively charged, and they are in the cloud that surrounds an atom. Therefore, D. Electrons is correct.
Single Antigen, Multiple Organs Some Type-II immunopathology mediated autoimmune diseases have manifestations in multiple different organs. Discuss how antibodies to one single antigen can cause damage in multiple sites throughout the body. Things you might discuss include, but are not limited to where the antigen could be expressed, how antibodies are made, how they bind antigen, where they circulate, the ratios of antigen to antibody, mechanisms of the immune system that result in cellular/tissue damage, or how immune system components can affect other organs. You might also comment on what makes one antigen an attractive target rather than another. Please do NOT comment on all the things listed above, they are just to get you thinking. If you are having trouble getting started, it might help to think about a specific disease which affects multiple organs... Good Luck!
Answer:
Adaptive immune responses are triggered by activation of antigen-specific T cells that produce antibodies against foreign antigens such as, for example, harmful viruses. These immune responses are useful to eliminate dangerous molecules from the body. In a normal immune reaction, the antibodies produced by T-cells target antigen molecules in order to be subsequently absorbed by phagocytic macrophage cells.
Autoimmune diseases are triggered by the response of the adaptive immune system against self-antigen molecules. Since the immune system can not eliminate antigens from the own body, this immune reaction generates an excessive inflammatory response, and it may lead to the damage of tissues and organs.
What is the issue with Venus’ fluffy little clouds?
Answer:
So, once the oceans evaporated, the carbon problem on Venus became even worse with nothing to sequester it. Over time, the water vapor in the atmosphere got hit by enough sunlight to break it apart, sending the hydrogen into space, with all that mass being replaced by carbon dioxide rising up out of the surface.
Explanation:
2. Which is the most common type of muscle in the body?
smooth
skeletal
cardiac
Answer:
skeletal
Explanation:
The presence or absence of horns in ruminant livestock species is determined by the polled gene. The polled allele (P) is dominant to the horned allele (p). What genotype(s) would result in an animal being polled (having no horns)?
Answer:
PP and Pp
Explanation:
The dominant allele "overpowers" the recessive allele, therefore that trait shows. In this case, it is the polled allele. Therefore, the heterozygous pair works. Also, the homozygous pair with only the dominant allele (polled) will of course work since that is the only gene.
The genotype(s) would result in an animal being polled (having no horns) is PP and Pp.
An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual possesses in a certain gene or genetic region are also referred to as the genotype.
The genotypes that encode for the polled allele are PP or Pp because the polled gene (P) is dominant over the horned gene (p). Because both of these alleles must be recessive in order for the horned allele to be expressed, the genotype that will carry it is pp.
Learn more about genotype, here:
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