Answer:
C. 40
Explanation:
Pure-breeding means that the individuals are homozygous for the genes being analyzed.
From Mendel's Law of Dominance we know that the traits that appear in the F1 are the dominant ones.
I will call:
P_ = purple flowers
pp = red flowers
L_ = long pollen
ll = round pollen
Initial cross:
P Pl/Pl x pL/pL
F1 Pl/pL
<u>Test cross</u> (cross with a homozygous recessive individual):
Pl/pL x pl/pl
<u>Expected progeny:</u>
Pl/pl = Parental (purple flowers, round pollen)
pL/pl = Parental (red flowers, long pollen)
PL/pl = Recombinant (purple flowers, long pollen)
pl/pl = Recombinant (red flowers, round pollen)
20% of the offspring have purple flowers and long pollen (PL/pl).
Every time crossing over happens in the meiosis of the F1 individual, both a <em>PL</em> gamete and a <em>pl</em> gamete form. That means that 20% of the offspring will also be pl/pl, and the total proportion of the offspring that will be recombinants will be 40%.
A distance of 1 map unit corresponds to a recombinant frequency of 1%.
A recombinant frequency of 40% therefore means that 40 map units separate the glower color and pollen shape genes.
Answer:
What am i supposed to do ?
Explanation:
Answer:
Fermentation is important can keep obtaining energy from glycolysis.
Explanation:
In the presence of oxygen, cells will use aerobic respiration to obtain energy in the form of ATP. In these conditions, it can produce up to 36 ATP molecules.
This process has three steps: glycolysis, citric acid cycle and electron transport chain.
During glycolysis, a glucose molecule is broken down into two pyruvate molecules, releasing electrons that are taken up by NAD+ which is converted into NADH, and producing a net total of 2 ATP molecules. The NADH produced during glycolysis and the citric acid cycle will go to the mitochondria and give away the electrons to start the electron transport chain that has Oxygen as the last electrons acceptor, and the NAD+ used to continue glycolysis is regenerated in the process.
In anaerobic conditions (no oxygen), the last electron acceptor is scarce, so the NADH can't give away its electrons and the NAD+ cannot be regenerated, so glycolysis stops, eventually causing cell death due to lack of ATP. To avoid this, cells perform lactic acid fermentation, where the NADH gives the electrons to pyruvate which is then converted into lactic acid. This regenerates the NAD+ necessary to continue glycolysis and keep obtaining some energy to survive until oxygen levels increase.
A new species of algae floating on the surface of a coastal zone, it is a type of <u>phytoplankton</u>.
Algae is an informal time period for a massive and various group of photosynthetic eukaryotic organisms. it is a polyphyletic grouping that includes species from a couple of awesome clades.
Algae belong to the dominion Protista whereas, fungi belong to the dominion Fungi. Algae are autotrophs, and Fungi are heterotrophs. Algae comprise photosynthetic pigments. Fungi are able to digest non-residing, natural fabric, and additionally absorb easy vitamins by the fungal hyphae.
A eutrophic lake is typically shallow with a smooth and mucky backside. Rooted plant boom is ample alongside the shore and out into the lake, and algal blooms are commonplace. Water clarity isn't right and the water frequently has a tea color. If deep is sufficient to thermally stratify, the bottom waters are devoid of oxygen.
Learn more about algae here:-brainly.com/question/800121
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