Answer:
Transient ischemic attack (TIA) may be defined as a medical condition in which individual suffers from numbness, difficulty in speaking and dizziness. The body loss is completely lost for few minutes.
In the given question, Robert might suffers from TIA. In TIA the brain cells of the body feels the anoxia or the cells are completely deprived of the oxygen. This TIA remain last only for few seconds to minutes and might cause the other serious problem.
Answer:
From the whole progeny of 544 plants, 34 individuals are expected to have short stems and white flowers.
Explanation:
<u>Available data:</u>
- short stems coded for by recessive allele t
- white flowers coded for by recessive allele p
- T codes for tall stems
- P codes for purple flowers
- Cross between two heterozygous individuals
- Total number of the progeny 544
In a dihybrid cross, it is expected to get a phenotypic ratio of 9:3:3:1
Cross:
Parentals) TtPp x TtPp
Gametes) TP Tp tP tp
TP Tp tP tp
Punnett square)
TP Tp tP tp
TP TTPP TTPp TtPP TtPp
Tp TTPp TTpp TtPp Ttpp
tP TtPP TtPp ttPP ttPp
tp TtPp Ttpp ttPp ttpp
F1)
- 9/16 T-P-
- 3/16 T-pp
- 3/16 ttP-
- 1/16 ttpp
(<em>Note: The "-" symbol represents either a dominant allele or a recessive one</em>)
From these possible genotypes and phenotypes, we can get their corresponding amount of individuals
16 ---------- 544 individuals
9 ------------X = 306 individuals tall stems and purple flowers T-P-
3-------------X = 102 individuals with tall stems and white flowers T-pp
3------------ X = 102 individuals with short stems and purple flowers ttP-
1 ------------ X = 34 individuals with short stems and white flowers, ttpp
Because the enzyme efficiency peaks at higher temperatures, the enzyme will work best at medium to high temperatures.
<em>the function of epidermis is to protect the leaf
make it air tight
prevent water loss as it is waxy
also it is transparent and allows all light to enter...
chloroplast is required for carrying out process of photosynthesis...
as epidermis is not specialized to carry out photosynthesis... so it does not have any chloroplast...</em>