Answer:
A
Explanation:
gregor Mendel experimented on plants and was able to discover genes, chromosomes.
Answer:
Cellular respiration that proceeds in the absence of oxygen is anaerobic respiration. Cellular respiration that proceeds in the presence of oxygen is aerobic respiration. Anaerobic respiration evolved prior to aerobic respiration.
Answer:
The options
A. pseudostratified epithelium
B. glandular epithelium
C. cuboidal epithelium
D. stratified epithelium
E. columnar epithelium
The CORRECT ANSWER IS A.
A. pseudostratified epithelium
Explanation:
A pseudostratified epithelium is a form of epithelium that, entails of a major layer of cells, with its cell nuclei placed in a manner that speaks of stratified epithelia.
Ciliated pseudostratified columnar epithelium cells are located in spots such as the trachea and upper respiratory tract, of which its cilia and mucous secretions do gather foreign bodies to be expelled during coughing or sneezing.
The aftermath of exposure to cigarette smoke are lung inflammation and the destruction of normal pseudostratified columnar ciliated epithelium. Cilia length is also reduced in smokers.
Answer:
The true statement would be: B
Explanation:
A would be wrong, because there are some cells that dont have a nucleus are called prokaryotic cells, these are ones that lack cells, so this answer is false.
C. All cells have a cell membrane, but some dont have cell walls.
D. Not all living things have more than one cell, they can have one cell.
Answer:
The father
Explanation:
Turner syndrome is a monosony condition resulting from the fusion of normal gamete with a gamete lacking a chromosome. The resulting zygote lacks in one chromosome. In human, Turner syndrome is deleterious in males and only occur in female.
Color blindness is a X-linked recessive trait. A male with XY chromosome will need just a copy of the allele while a normal XX female will need 2 copies (one from each parent). A X-0 female (Turner syndrome) only need a copy of the recessive allele.
Since both parents have normal vision, it means that the father was not affected for the disease and the affected X chromosome must have been from the carrier mother. It thus means that the missing X chromosome is the fault of the father.
<em>Therefore non-disjunction of the XY chromosome must have happened in the father leading to inability to contribute a X chromosome to the daughter.</em>
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