5. Name the reproductive-isolating a. One species of frog mates in April, but another mates in May. b. Two fruit flies of different species produce sterile offspring. mechanism operating in each situation belov c. The sperm of a marine worm penetrates eggs of the same species only. d. One species of flower grows in forested areas, another in meadows. e. Two species of pheasant perform different courtship dances.

Q: Genetics Question 7

A: The objective of the question is to identify the correct event that occurs during the prophase of…

Q: Question 7. When does differentiation occur in egg development?

A: Cellular differentiation is a multi-step process involving the coordinated regulation of genes by a…

Q: a. Which of the following sets of genes should an "a" cell not be able to transcribe? [Select] b.…

A: The primary membrane-sure unit that carries the essential molecules of existence and of which all…

Q: This process would occur during all of the following EXCEPT * STAGES OF MITOSIS MAN G: OF INTERPHASE…

A: Mitosis consists of - 1.Interphase - It consists of the G1 phase, S phase and G2 phase. 2.M phase -…

Q: Find two differences and two similarities between binary fission and mitosis.

A: Binary fission is a kind of asexual reproduction in which the parent cell is divided into two…

Q: why Triploid Organisms Are Usually Infertile

A: Triploid organisms can occur naturally or can be created by genetic modification. Triploids are…

Q: Label the nucleus. First picture is at 100x, second picture is at 400x.

A: The nucleus is present in eukaryotic cells only and it contain the genetic material or DNA in the…

Q: Which statement regarding cell reproduction is true? Multiple Choice   Cell division occurs prior…

A: Introduction  Cell division is the process through which a mother cell divides into two or more…

Q: how  colchicine is used  to double chromosome numbers

A: Colchicine is a chemical which is used  to induce polyploidy in cells as it prevents the microtubule…

Q: After DNA replication a eukaryotic chromosome

A: Step 1 Replication is the formation of exact carbon copies of a substance. It occurs in the case of…

Q: In which marked area below are cells dividing most frequently? OD A C B A B C

A: The above image is of skin.  The skin is mainly divided into two layers - the outermost epidermis…

Q: Kinetic or Potential Energy a meandering stream wind burning charcoal a still puddle of water…

A: The task at hand involves categorizing various scenarios or objects as possessing either kinetic or…

Q: Cell" is related to "bacteria" in the same way as _____ is related to "virus".     genome…

A: The cell is the basic structural and functional unit of life. A normal cell is made up of cell…

Q: During development, which cell in the list below is the least committed? O zygote O Morula Inner…

A: Cells that have committed to to a particular pathway of differentiation. Precursor cells in fetal or…

Q: Question 1 Two divisions O Mitosis O Meiosis O Both mitosis and meiosis

A: Introduction :  Cell cycle is a series of events that occur in a cell when it grows and divides.…

Q: Most cells have a limited life span. Cells that are damaged or lost in a multi-cellular organism are…

A: Cells that are damaged or lost in multicellular organisms are replaced by the process thrpugh which…

Q: are found at the chalazal end of the embryo sac. Polar nuclei Synergids Eggs Ovules Antipodals

A: Angiosperms are also known as Flowering Plants. They are the type of plants that are capable of…

Q: Genetics Question 3

A: The SRD5A2 gene provides instructions for making an enzyme called 5-alpha reductase 2. This enzyme…

Q: о O O mitochondria chromosomes antioxidants telomeres

A: Before reaching senescence, the typical normal human foetal cell will divide between 50 and 70…

Q: Genetics Question 10

A: The question is asking about the sequence of events that occur during meiosis and the preceding…

Q: An egg and similar share:     the same size     the same degree of mobility     the same…

A: An egg is female gamete and sperm is male gamete. Both are used in the process of progeny…

Q: When the organism can no longer repair every cellular error what occurt cellular aging…

A: A mutation is a permanent change in the DNA of a cell such that the sequence deviates from what is…

Q: а. G1 b. S С. G2 2. Prophase 3. Metaphase 1. Anaphase Telophase

A: The Interphase, Prophase, Metaphase, Anaphase, and Telophase are the stages that occur in the cell…

Q: Chromatin, nuclesome, DNA, and chromosome in order from least to most complex

A: The main function of DNA (deoxyribonucleic acid) is to convey genes, the data that indicates all the…

Q: A substance or an agent in the environment that increases the chance of genetic alteration and…

A: Answer Malignant tumor

Q: humans cell nuclues contain 46 chromosomes or blanks pairs

A: Human cells consist of multiple membrane-bound organelles. The human cell consists of different…

Ecological adaptations

An ecological adaptation is any morphological, physiological, or behavioral trait of an organism that allows it to survive and reproduce in a habitat or ecosystem. Adaptation is a biological mechanism by which an organism gradually gets more acclimated to its surroundings.