<span>Sexual fertilization takes place
when a sperm from the male fuses into the egg cell of the female. <span>Human cells contain 23 chromosomes and has a total of 46
pairs of chromosomes. A male has a total of 46 pairs chromosomes and gives 23 chromosomes
while a female has a total of 46 pairs of chromosomes and gives 23 chromosomes
to the offspring. These pairing are responsible to the trait of the offspring. The
formation of both male and female gametes creates a zygote. They will start to
form at the fallopian tube, down to the oviduct and into the uterus as it
continues to divide. </span></span>
Answer:
The predation pressure increases mate
Explanation:
Since the observation of the scientist goes in order to increase the coloration in males, because of the predation pressure, and as a consequence the females are attracted by this colored mates.
It will be expected that the increase in pressure, it will increase the colored in skin, and this could end in an increase of the number of mates per male.
Answer: no it is not true
Explanation:
Answer:
The fundamental unit of heredity that carries genetic information from one generation to the next. A gene is an ordered sequence of nucleotides located on a particular position on a particular chromosome that encodes a specific functional protein. ... Each protein has a unique function determined by its shape.
Answer:
Only Photosystem I - 1, 5, 6
Only photosystem II - 3, 2
Both Photosystem I and II - 4
Explanation:
Only Photosystem I
a) Reduction of NADP+ - uses light energy to convert NADP+ to NADPH2
b) Reduction of electron transport chain between the two photosystems
c) Oxidation of electron transport chain between the two photosystems.
Only photosystem II
a) Oxidation of water - here the absorbed light energy is used to dissociate of water molecules to produces protons (H+) and O2 along with free ions
b)Reduction of primary electron acceptor - An electron is taken by pheophytin which is a primary electron acceptor molecule that is located within photosystem II and hence it get reduced.
Both Photosystem I and II
a) Light is absorbed in both photosystem I and II. While in photosystem I, light waves of large wavelength i.e 700 nm are absorbed, in photosystem II light waves of short wavelength of i.e 680 nm are absorbed.