The official term is a megaflash :)
Answer:
75%
Explanation:
The autosomal gene for baldness has two possible alleles: Hb (baldness) and Hn (nonbaldness).
A man and a woman, both heterozygous <em>HnHb,</em> have a son. Each parent produces gametes <em>Hn</em> or <em>Hb</em>.
The possible genotypes of their children, resulting from the combinations of those gametes, are:
In males, the Hb allele is dominant. Therefore, their son has a chance of 3/4 = 0.75 = 75% of having the Hb allele which determines baldness.
Answer:
Cartilage is a type of connective tissue formed of two types of cells, chondrocytes and chondroblasts, and an abundant, highly specialized and vascular extracellular matrix. It is a good tissue of choice because it has the function of supporting soft tissue (tracheal rings, for example), lining the joint surfaces of bones, and promoting the formation and growth of long bones.
Hyaline cartilage is the most common cartilage in the human body. It has a cool translucent bluish-white color and is responsible for the formation of the temporary skeleton in fetal development until this skeleton is replaced by bone tissue. Found mainly supporting the nasal passages, the trachea, and the bronchi, at the ventral end of the ribs and covering the articular surfaces of the long bones.
Answer:
A: True
Explanation:
both of these are examples of passive transport :)
Answer:
The presence of organelle DNA in mitochondria and chloroplast supports the theory that mitochondria and chloroplast originated as independent prokaryotic organism.
Explanation:
- The more well documented and generally accepted theory for the origin of eukaryotic organelles is Endosymbiotic Theory. (Margulis 1970).
- Recent evidences justify that organelles have originated from the endosymbiotic association of ingested aerobic and and photosynthetic prokaryote, the precursors of mitochondria and chloroplast respectively.
- Molecular data have played an important role in supporting the xenogenous origin rather than autogenous origin of organelles.
- The idea of independent existence of mitochondria and chloroplast are: they are replicators; they carry genetic information; they have protein synthesising machinery; they have ribosome of prokaryotic type.
- The prokaryotic or bacterial origin of mitochondria and chloroplast is supported by the fact like their DNA is simple ,closed and circular with single point of origin; DNA controls the synthesis of their rRNA and tRNA etc.; They have their own ribosome; antibiotic specificity.
