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Lemur [1.5K]
4 years ago
12

How does the Bicoid protein provide positional information along the anterior-posterior axis of the fly embryo?It is present at

high concentration at the __________ end and low concentration at the ____________ end.
Biology
1 answer:
denis-greek [22]4 years ago
3 0

It is present at high concentration at the anterior end and low concentration at the posterior end.

Gene bicoid (and its product-bicoid protein) organizes anterior development in Drosophila.

During oogenesis, bicoid mRNA is actively localized to the anterior of the Drosophila egg.

Bicoid genes together with Hunchback genes are the maternal effect genes and that are most important for patterning of anterior parts of the Drosophila embryo such as head and thorax.

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The punnett square illustrates a cross for color of the flower. based on the phenotypes and genotypes of these offspring, it is
tino4ka555 [31]

In the given situation, purple color allele is heterozygous and the parents are homozygous.

<h3>What are genotypes?</h3>

The term "genotype" refers to an the genetic makeup of an organism in other words, it describes an organism's entire set of genes.

In a narrower sense, the term can refer to the alleles, or variant forms of a gene, that an organism carries.

In the given situation, purple color allele is heterozygous and the parents are homozygous.

Thus, the answer is heterozygous and homozygous respectively.

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A concept which suggests that a historical event affects a cohort differently than it affects subsequent cohorts because of the
frosja888 [35]

Answer:

The correct answer is option B. cohort effects.

Explanation:

Cohort effects is an effect that is used in the social science or psychology to explain difference or variations in the traits of part of the study over a period of time in individuals who have some type of similar experiences such as year of birth or age.

It can be understood as a historical event that can lead to affect the cohort due to the life phase it takes place.

Thus, the correct answer is option B. cohort effects.

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