Answer:
B. Proteins
Explanation:
Proteins make up many different things in our bodies. Proteins are the building blocks of organelles.
Ex- Ribosomes are organelles that are made of RNA and Protein, and they also make proteins.
MyB Protein is a protein that help build the immune system and give support to fight off diseases.
Answer:
Testcrosses clarify linkage because each phenotypic class of progeny corresponds to each gamete type produced by the dihybrid parent.
Explanation:
- A test cross involves the crossing of an individual with another phenotypically recessive individual so as to determine the zygosity of the former by analyses of the proportions of offspring phenotypes.
- In order to determine linkage, the test cross shows that if the parentals are more than the recombinants, we can say that the two genes such as b and c are genetically linked and therefore, they must be on the same chromosome.
- Also, the test-crosses help to find out which alleles came from which parent.
- By setting up testcrosses in which one parent is homozygous for the recessive alleles of both genes,we can analyze the gene combinations received in the gametes from the other, doubly heterozygous parent.
Answer:
to attract pollinators
Explanation:
The role of structure A is to attract pollinators. Pollinators are the organisms which helps in the pollination of flowers. These organisms gets nectar from the flower. During their contact with flower pollens are attached to their body and when they moves to another flower these pollens falls on the carpel of the flower and as a result pollination occurs that leads to formation of seed.
Unicellular organisms don’t contain membrane-bound organelles, while the cells of multicellular organisms contain membrane-bound organelles such as the nucleus. In a unicellular organism, the cell carries out all cellular processes, while in the cell of a multicellular organism, different cells have different jobs.
