Cellular organelles generally have different structures because these structures govern the specific functions of each organelle within the cell and stimulate its survivability.
Cell organelles may be defined as the types of subcellular structure that significantly has to perform one or more specific functions in the cell. For example, the nucleus stores genetic material, mitochondria produce chemical energy, etc.
The structure of each and every cellular organelle is based on its function. For example, the nucleus is enclosed by a double membraneous layer that stores the genetic material of an organism. It also has pores (nuclear pores) that allow the passage of substances in and out.
Golgi apparatus has numerous projections that allow them to transport functional proteins to their targeted site from the nucleus or ER. Mitochondria has cristae, matrix, ribosomes, etc. that facilitate the production of chemical energy and hence it is known as the powerhouse of the cell.
Therefore, cellular organelles generally have different structures because these structures govern the specific functions of each organelle within the cell and stimulate its survivability.
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a. When crossing triply heterozygous flies (Aa Bb Cc), where each gene has one dominant allele and one recessive allele, the phenotypic ratios among the progeny would be 1:1. b. The genotype of the wild-type male can be deduced based on the phenotypic ratios observed in the crosses with the tester strains.
a. If you crossed triply heterozygous flies (Aa Bb Cc), where each gene has one dominant allele and one recessive allele, you can use the product rule to predict the phenotypic ratios among the progeny.
For each gene, the possible gametes are A and a, B and b, C and c. When you cross the triply heterozygous flies, you can determine the possible genotypes of the offspring:
Genotypes:
AA BB CC (wild type)
AA BB Cc (wild type)
AA Bb CC (wild type)
AA Bb Cc (wild type)
Aa BB CC (wild type)
Aa BB Cc (wild type)
Aa Bb CC (wild type)
Aa Bb Cc (wild type)
The phenotypic ratios can be determined by counting the number of wild-type (dominant phenotype) offspring and dividing it by the total number of offspring:
Wild-type progeny (AA BB CC, AA BB Cc, AA Bb CC, AA Bb Cc, Aa BB CC, Aa BB Cc, Aa Bb CC, Aa Bb Cc) = 8
Total number of progeny = 8 (since each possible genotype occurs once)
Phenotypic ratio: 8 wild-type : 8 total = 1:1
b. To determine the genotype of the wild-type male, we can deduce it based on the phenotypic ratios observed in the crosses with the tester strains.
In the cross with the tester strain AA bb cc, only 1/4 of the progeny are wild type. This means that the male being tested (wild-type male) must be heterozygous for the B and C genes (Aa Bb Cc) since the wild-type phenotype requires one dominant allele for each of the three genes.
In the crosses involving the other two tester strains (aa BB cc and aa bb CO), half of the progeny are wild type. This indicates that the wild-type male is homozygous for the A gene (AA Bb Cc) since the wild-type phenotype requires two dominant alleles for the A gene.
So, the genotype of the wild-type male is Aa BB Cc.
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Answer:
the genotype depends more on if its a boy or girl
Explanation:
b. protects cells from infection
c. provides the instructions for making proteins
d. regulates the chemical processes that provide the cell with energy
The correct answer is DNA provides the instructions for making proteins.
The replication of DNA aids in protein synthesis. The main function of DNA is to give instructions for making different proteins required by different cells of the body. They give instructions for the arrangement of the of the bases A, T, G, C in the DNA. The different arrangements of these bases results in the production of different kinds of protein. Thus, the DNA gives instructions for protein synthesis.
Answer:
how did the Universe get created
Explanation: