Answer:
- E/e ; T/t ⇒ Square eyes and long tail (Option D)
- 3/16 will have round eyes and long tails (Option C)
- 1/4 of the progeny will be heterozygous for both traits (Option A)
Explanation:
<u>Available data</u>:
- Two diallelic unlinked genes
- Gene E controls eye shape: Dominant allele E expresses square eyes, and recessive allele e expresses round eyes.
- Gene T controls the tail size. Dominant allele T expresses long trail, and recessive allele t expresses short tail.
<u>Genotypes Phenotypes</u>
EETT, EeTT, EETt, EeTt Square eyes and Long tail
eeTT, eeTt Round eyes and Long tail
EEtt, Eett Square eyes and Short tail
eett Rounf eyes and short tail.
<em>1. An individual of this new species is heterozygous for gene E and heterozygous for gene T. What is their genotype and phenotype?</em>
The heterozygous individual is E/e ; T/t, expressing square eyes and a long tail.
<em>2. Two individuals, who are both heterozygous for eye shape and tail size, mate. Which of the following is a correct statement about the phenotype ratios expected for their offspring?</em>
Cross: between two heterozygous individuals
Parentals) EeTt x EeTt
Gametes) ET, Et, eT, et
ET, Et, eT, et
Punnett square) . ET Et eT et
ET EETT EETt EeTT EeTt
Et EETt EEtt EeTt Eett
eT EeTT EeTt eeTT eeTt
et EeTt Eett eeTt eett
F1) Genotype:
- 1/16 EETT
- 2/16 EETt
- 1/16 EEtt
- 2/16 EeTT
- 4/16 EeTt ⇒ 1/4 EeTt
- 2/16 Eett
- 1/16 eeTT
- 2/16 eeTt
- 1/16 eett
Phenotype
- 9/16 E-T-, Square eyes and Long tails
- 3/16 E-tt, Square eyes and short tails
- 3/16 eeT-, Round eyes and Long tails
- 1/16 eett, round eyes and short tail
Phenotypic ratio 9:3:3:1
<em>3. From the mating described in question ABOVE, what proportion of ALL of the offspring in will be heterozygous for both traits?</em>
4/16 = 1/4 = 25% of the progeny are expected to be heterozygous for both traits, EeTt.
Answer:
Carbon dioxide and oxygen are recycled through photosynthesis and cellular
respiration forever unless something interrupts.
Explanation:
Photosynthesis and cellular respiration are two distinct and opposite metabolical processes undergone by living cells. They are opposite processes because one utilizes the products of the other as reactants.
Photosynthesis is a unique process to autotrophic organisms like plants. It is the process whereby plants synthesize their food in form of organic molecules (glucose) by combining Carbondioxide (CO2) and water (H2O) in the presence of sunlight.
The overall equation of photosynthesis is as follows:
6CO2 + 6H2O ------> C6H12O6+ 6O2
On the other hand, cellular respiration is the process whereby living cells obtain energy (ATP) by breaking down food molecules (glucose) using oxygen to produce carbondioxide (CO2) and water as products. The overall equation is:
C6H12O6 + 602 -----> 6CO2 + 6H2O
Based on the lab experiments, it can be concluded that Carbon dioxide and oxygen are recycled through photosynthesis and cellular
respiration because photosynthesis recycles/reuses the products of cellular respiration, which are C02 and H2O while cellular respiration recycles/reuses the products of photosynthesis, which are C6H12O6 and O2. This process occurs naturally in the environment and will continue to do so unless something interupts.
Option B is incorrect because light energy from the sun powers photosynthesis while option C is incorrect because photosynthesis transforms light energy to chemical energy while cellular respiration transforms chemical energy to thermal energy.
Cardiac Muscle, reason its called Cardiac attack when you have that sort of " Heart Attack "
the first one is a mollusca
Answer:
#male gametes are formed
#generative nucleus divides
#fertilization takes place
#pollen tube grows
# zygote is formed
#embryo is formed
