Answer:
The combinations of gametes that could be produced from heterozygous individuals for both traits are PT, Pt, pT and pt.
Explanation:
An individual is heterozygous for two traits, flower color and stem height, with a PpTt (dihybrid) genotype and a phenotype showing the dominant traits, purple flowers and tall stem.
The genes of this individual for the above-mentioned traits contain different alleles, and taking into account the independent segregation of characters, the alleles present in its gametes could be:
Therefore, the traits of its offspring will depend on the alleles for those traits present in the gamete to which they are combined.
A heterozygous plant for both traits can produce four types of gametes: PT, Pt, pT, and pt. Each represents a different combination of traits. This is determined by using Punnett squares and the Mendelian principles of segregation.
A heterozygote for both traits P (purple flowers) and T (tall plants) would symbolize a plant with genotype Pt (for purple and tall) and pT (for white and dwarf). This plant can produce four different types of gametes upon segregation of alleles during meiosis: PT, Pt, pT, and pt.
Each gamete carries one allele for each trait. PT represents a gamete carrying alleles for purple flowers and tall plants, Pt for purple flowers and dwarf plants, pT for white flowers and tall plants, and pt for white flowers and dwarf plants. These combinations of gametes are obtained through Punnett square analysis, a genetic tool used to predict possible genotypes and phenotypes of offspring from a particular cross.
#SPJ2
b. viruses lack genetic material
c. virues have no protein structure
d. viruses are composed of protein only
e. viruses are composed of both protein and lipid
Answer: A) Viruses lack cytoplasm and organelles
Explanation:
Viruses are composed of DNA and RNA and the protein as the genetic material. Virus is the smallest pathogens and it is different from other pathogen as they cannot reproduced by itself.
Virus lack cytoplasm and organelles that is why they are differ from all the pathogens.
Viruses are composed of genetic material and the proteins and it does not contain lipids.
Therefore, option (A) is correct.
Viruses differ from other pathogens in several ways, including a. lacking cytoplasm and organelles, b. having genetic material, and c. having a protein structure.
Viruses differ from other pathogens in several ways. These can be noted as -
Therefore, options a, b, c, and d are incorrect. Option e, which states that viruses are composed of both protein and lipid, is incorrect as well. Although some viruses may have an outer lipid envelope, this is not a defining characteristic of all viruses.
#SPJ6
Correct answer: B). Limited data sets can contain some identifiers
A limited data set is a set of identifiable patient information The patient information disclosure should only be done for research, healthcare operations without obtaining individual authorization for its use. It may contain data set that includes information related to an individual. It may also contain unique identifiers or specific code.
Hence, the correct answer would be option B.
A. Ecology
B. Chemistry
C. Meteorology
D. Geophysics
Earthworms are delicate. Careful handling is important toavoid damaging the internal organs.
Place the worm with the dorsal side up. Start the dissection2 centimeters posterior the reproductive segment. Snip the skin above the dorsal bloodvessel ( near the posterior pin) throughthe septa to the mouth.
Answer:
Earthworms are delicate. Careful handling is important to avoid damaging the internal organs.
Place the worm with the dorsal side up. Start the dissection 2 centimeters posterior the reproductive segment. Snip the skin above the dorsal blood vessel ( near the posterior pin) through the septa to the mouth.
Explanation:
Pedigree charts are used to trace the passing out of traits(characteristics) through generations.
In the given pedigree of 5 generations, the pattern of inheritance of genetic abnormality of polydactyly(extra fingers in hands and toes) is studied . The types of pattern of inheritance in traits over generations.
(a) Genotype of the parents for the trait Polydactyly in generation 1
Since each parent provide one allele of each trait to the offspring there are dominant and recessive genes on the basis of the expression of the character or trait. The genotype of the parents for thre trait of polydactyly in generation 1 is Recessive. Because both the parents do not have the abnormality and their offspring shows(expresses) the trait.
(b) In humans there are 46 chromosomes arranged as 23 sets of 2 chromosomes in a cell which is described as (2n). These somatic cells undergo Mitotic division to produce 2 identical daughter cell with 2n chromosomes and they are called diploid cells. When Meiosis takes place one cell is divide into 4 Haploid cells with 23 chromosomes each, ie, the single set of chromosomes represented by n. These Haploid cells are the gamates which transfer the genetic information from parents to offspring. The gamates are 2 types the sperm and egg cells , both are haploid and during fertilization a sperm cell fuses with eggcell to form a zygote with 2n (46) chromosomes.
To learn more about chromosomes check the link below:
#SPJ4