Answer:
objectives, operating environments, and categories of effort
Explanation:
Answer:
The diagram is used by biologists to determine the probability of an offspring having a particular genotype. The Punnett square is a tabular summary of possible combinations of maternal alleles with paternal alleles. The Punnett square is a visual representation of Mendelian inheritance.
Explanation:
An example of a Punnett square:
tt and TT
t . t
T tT . tT
T tT tT
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<span>a. round head
</span>Spermatogenesis is for the males’ sperm cells and oogenesis is the process for females’ egg cells.
<span><span> Meiosis is the process of cell division by which involving gametes. Cell division is just the same for sperm and egg cells, but they have distinguishable descriptions and labels in the process. </span>The cell division of meiosis involves the two phases, respectively meiosis I and meiosis II. </span>Meiosis I like mitosis is the cell division that produces diploid cells<span>. These diploid cells are cells that contain a complete pair of chromosomes which is 46. The result is two diploid cells after the first meiosis. To provide clear explanation, in contrast haploid cells only contain 23 chromosomes and are created after meiosis II which is 4 in number.<span>
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Answer:
Some mutations don't have any noticeable effect on the phenotype of an organism.
Explanation:
This can happen in many situations: perhaps the mutation occurs in a stretch of DNA with no function, or perhaps the mutation occurs in a protein-coding region, but ends up not affecting the amino acid sequence of the protein.
Answer: parthenogenesis (apomixis and automixis)
Explanation: parthenogenesis can be simply defined as a form of asexual reproduction where the developmental process begins i.e egg develop into an embryo without the prior fertilization from sperm cells.
Egg cells or sex cell (oocyte) are reproduced by replications which produces two diploid cells having full complement of chromosomes that is required for the developmental process to begin.
This form of reproduction occurs in plants as well as some lower invertebrates such as anthropods (insects) and some species of aves, amphibians and reptilians.
It should be noted that parthenogenesis doesn't occur in mammals.