Answer:
c. A testcross
Explanation:
A dominant organism can be heterozygous or homozygous for the gene. To determine the genotype of a dominant organism, it is crossed with a homozygous recessive organism for the same gene. In the given cross, a tall pea plant with an unknown genotype is crossed with a pure breeding short pea plant. This is called a testcross.
If the obtained progeny express both tall and short phenotypes, the tall parent plant was heterozygous (Tt) for the trait. If the cross gives only tall progeny, the genotype of the tall plant is homozygous dominant (TT). Here, T represents the allele for tallness while the allele "t" gives short phenotype.
Answer:
Hello Queen Messy here!
Glycolysis in Respiration
Cells use oxygen to assist in cellular respiration. This type of respiration, called aerobic cellular respiration, converts stored energy into a usable form, chiefly by reacting glucose and oxygen through an intermediate. The first stage of aerobic cellular respiration, glycolysis, can be performed without oxygen. However, if oxygen is not present, cellular respiration cannot continue past this stage.
In glycolysis, glucose is converted to a carbon-based molecule called pyruvate. Two molecules of adenosinse tri-phosphate (ATP), a nucleotide that provides energy to cells, are generated during this process.
Explanation:
The answer is; true
These microbes are usually adapted to their environment and this is why they are found in virtually all ecosystems. You will find bacteria even at the bottom of deep ocean beds deep and in geothermal vents, hypersaline water and very cold regions (such as polar regions). Fungi which vary widely in size from microscopically small to the largest organisms such as mushrooms are also found in virtually all environments on earth. They are nonetheless different species of these groups adapted to their environments.
Answer:
5. true
6. A
This is the answers for 5 and 6
Answer N0 1)
Lights are left on overnight:
If lights are left on overnight, then the process of photosynthesis will also occur during the night time when the sun is not present. Hence, this method is beneficial.
Farmers can also add fertilizers to the soil:
The addition of fertilizers to the soil allows essential nutrients to be taken up by the plant which will enhance its photosynthetic activity.
Extra carbon dioxide can be pumped into the green house. This comes from the burning of fuel like paraffin which releases. Carbon dioxide as a by-product.
Plants convert carbon dioxide and water into oxygen and glucose during photosynthesis. Hence, this process can be somewhat beneficial.
Fossil fuels are burnt (expensive) to keep the green house nice and warm.
Burning of fossil fuels to keep the green house warm is not an efficient process because this will deplete the natural resources.
Answer No 2)
Plants are protected from unfavourable conditions in a green house. Conditions such as harsh temperatures or harsh wind or floods can completely destroy crop plants. Hence, plants can be grown in the green house where favorable conditions are maintained for their growth.
