Answer:
The correct answer is d Lysosomes contain enzymes to breakdown damaged cellular material.
Explanation:
Lysosomes are called digestive organelle that contain many hydrolytic enzymes such as acid hydrolase ,peptidase, nuclease etc which aids in the digestion of various cellular components such as carbohydrates,protein,nucleic acid.
Lysosome perform the same function by the formation of auto phagolysosome which contain the those cellular molecules and organelles those are targeted for degradation.
Answer;
B) increased number of chromosomes in the offspring.
Explanation;
-Cross over is a process that takes place during meiosis. It occurs when homologous chromosomes pair up and the segments of chromosomes are exchanged between non sister chromatids, resulting to recombinant chromosomes.
-The process causes genetic variation among organisms due to exchange of genetic material. In addition to increased genetic variation, cross over may results to the appearance of new phenotypes in the offspring. Also cros-over mutations may cause harmful mutations.
Answer:
The correct answer is mechanical energy.
Explanation:
For an internal combustion engine to work you will need to burn fuel. This burning of fuel is called combustion.
It is a chemical process in which mixing oxygen with fuel generates heat for the motor to move
.
The oxygen in this process is called oxidant and together with the fuel it will be the one that manages to run the internal combustion engine.
Answer:
a) The genes present on separate chromosomes exhibit indepedent assortment.
b) The genotype of tall and purple flower parent= TTPp
The genotype of short and purple flower parent: ttPp
Explanation:
a) In a dihybrid cross, if the genes are present on the same chromosome, they will not exhibit independent assortment. The genes present on the same chromosome are called linked genes. Linked genes are inherited together. The absence of independent assortment of a linked gene gives more of parental types in F2 progeny. Therefore, if genes are not present on a separate chromosome, Mendel’s ratios deviate.
b) Alleles for tallness and purple flower are dominant. In the progeny, all the plants are tall. This means that the dominant tall plant is homozygous. With respect to flower color, the trait exhibits segregation of dominant and recessive alleles and both purple and white flower progeny are obtained. This makes both the plants heterozygous for the flower color gene.
The genotype of tall and purple flower parent= TTPp
The genotype of short and purple flower parent: ttPp