In an animal cell, the organelles that are present are:
The nucleus,
The endoplasmic reticulum,
The golgi apparatus,
The lysosomes,
The ribosomes,
The vacuoles,
The centrioles,
The mitochondria,
nucleolu, vesicle, rough endoplasmic reticulum, cytoskeleton, smooth endoplasmic reticulum, cytosol
Answer:
The blonde hair would be the recessive trait and both the parents must be heterozygous dominant.
For instance, let us consider B and b the alleles of the gene responsible for the color of the hairs.
B is the dominant allele which codes for the brown color whereas b is recessive allele which codes for blonde hairs.
The phenotype of both the parents is a brown color, that is, dominant trait. They genotype would be Bb.
The cross would produce offspring with three possible types of genotypes BB, Bb, and bb in the ratio 1:2:1.
The offspring with BB and Bb genotype would have brown hair color and the offspring with bb would have blonde hair color.
Answer:
B. A walrus stays warm in cold oceans
Explanation:
Lipids are the macromolecules that are stored in adipose tissues and beneath the skin surface. These lipids layer present under skin serve as insulators.
Many organisms found in colder climatic conditions such as walrus of cold oceans have a thick layer of lipids under their skin. This lipid layer is called blubber and keeps the organism warm under cold conditions.