How are the clock and the determination front connected to the role of Hox genes?

Q: Is the embryonicdevelopment in birds direct orindirect?

A: Animal developmental process can be direct or indirect. Direct development: It refers to the…

Q: Is the type and pattern of the cleave of an egg the same to all species of animals?

A: During the mitotic division, the cytoplasm of the egg is divided into multiple parts which then…

Q: How might differential expression of and regulation by Hox genes contribute to mosaic evolution in…

A: Genome is the complete set of genetic content present in a cell. A gene is a stretch of nucleotides…

Q: What are placental mammal ? Explain the role of  placental mammal ?

A: Placental mammals are a diverse group, with nearly 4000 species described, the majority of which are…

Q: What are embryophtes?

A: Plants are mainly multicellular organisms, predominantly photosynthetic eukaryotes of the kingdom…

Q: Why is embryogenesis important in reptile specially in snakes?

A: Importance of embryogenesis in reptiles especially in snakes.

Q: What structural adaptation in chickens allows them to lay theireggs in arid environments rather than…

A: The vertebrate embryo requires an aqueous environment for their development. The amphibians and…

Q: What are flight adaptationspresent by birds?

A: Adaptation is an evolutionary change that makes the organism or the species better suited to the…

Q: With an help of properly illustrated drawings, explain the difference in the development of…

A:

Q: Where is the egg found in seed plants?

A: Seed plants are a group of plants. Gymnosperms and angiosperms form the group. Their seeds have…

Q: What is developmental mechanism?

A: In biology, a mechanism is a system of causally interrelated elements and processes that result in…

Q: Explain how egg rotation and gravity determine anterior posterior patterning in chick embryos

A: Anterior posterior pattern formation is the regionalization process in which specific areas of cell…

Q: describe direct and indirect development and name some animal groups that have each type of…

A: Difference between the direct ns indirect development is listed below.

Q: what characteristics are shared among bird embryos, pig embryos, and human embryos?

A: There are several similarities between the embryos of different species of animals and birds. It was…

Q: What are the molecules being secreted by the organizer in a regional fashion such that the first…

A: Development of embryo -- The development in developmental biology gave a milestone by the discovery…

Q: Where is the egg located in the archegonium?

A: In Bryophytes plants, the female and male sex organs are termed archegonia and antheridia…

Q: How do monotremes, marsupials, and placental mammals differ inhow they reproduce?

A: they are the organism which lays the egg only 5 species are discovered as monotherms they do not…

Q: Which ovary is functional in birds?

A: Ovary is the female reproductive organ found in lower chordates to higher animals. Ovary produces…

Q: Why is it likely that Hox genes have played a major rolein the evolution of novel morphological…

A: The Hox proteins are involved in the transcription factor discovered from Drosophila which govern…

Q: According to this picture of embryos (early developmental stages), which two organisms are most…

A: Between all the organisms, some characteristics are similar and some characteristics are same. Based…

Q: Why is it more difficult to determine the sex of a newlyhatched canary than a newborn puppy?

A: A sex-determination mechanism is a physiological system that controls how an organism's sexual…

Q: Did the arthropod body plan resultfrom new Hox genes?

A: Step 1 An arthropod is a phylum of triploblastic, haemocoelomic, segmented invertebrates having the…

Q: Is fecundation in mammalsinternal or external?

A: Fecundation, also known as fertilization involves the physical union of the male and female gamete…

Q: Briefly explain how and why the yolk distribution in mammalian eggs has changed from their…

A: According to Bartleby expert, when multiple questions are posted we are allowed to answer the first…

Q: What was Xu Xing's original hypothesis for how flight evolved in birds?

A: Birds are unique among terrestrial beings. They are the only class of animals that can fly. Though…

Q: In which habitat do birdslive?

A: The habitats of birds refer to the area in which the bird build their nests.

Q: What is developmental biology?

A: Introduction Biology is the study of life as a science. It is a broad-ranging natural science with…

Q: How did HOMO successfully expand around and out of AFRICA?

A: ANSWER;- - These environment shifts, set off by the wobble of Earth's pivot, made green hallways…

Q: What are the differences in the life cycle of mosquitoes and butterflies?

A: In some animals, the young ones are different from their adults. There are many features that are…

Q: mine which end is its head and which is its tail?

A: Mammalian embryogenesis can be defined as the process of cell division that involves cellular…

Q: How many chromosomes do snakes have?

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: How do the eggs ovulated into the abdominal cavity find their way out of the frog’s body?

A: To understand the path of the egg we need to understand that frogs lay eggs. This process usually…

Q: What genes are these Hox proteins regulating?

A: The Hox genes are special types of genes that involve the transcription factor gene. The expression…

Q: How do birds reproduce?

A: Different processes involved in animal development described by the Direct and indirect development.…

Q: Is parental care of a species a factor that affects embryological development? If so, how?

A: Embryological Development -- Embryological Development also called as Embryogenesis a complicated…

Q: What are the consequences of the differences in the yolk amount and distribution of eggs among…

A: The amount and distribution of yolk inside the egg decides the pattern of cleavage. The type of…

Q: explain Three egg types in variegated four-o’clocks.

A: Four o clock plant or Mirabilis jalapa refers to the perennial bushy flowering plants. These plants…

Q: What are homeotic genes and what is the “homeobox” contained in such genes? What is the function of…

A: A group of genes that control the pattern of body formation during the early development period of…

Q: How are growth and development controlled in insects?

A: Insects are categorized as arthropods.

Q: What is indirect development?

A: Development involves the functional and physiological maturation of an individual. It is a…

Q: What are two external structures of the frogs in the picture? How do they help the frogs survive?

A: 5 kingdom classifications is a type of classification in which living organisms are classified into…

Q: Is the embryonic development in earthworms direct or indirect?

A: The earthworm is a hermaphrodite organism in which both male and female reproductive organs are…

Q: What is the relationship of the bats' status hibernation in the physiological mechanism with the…

A: Hibernation involves an extreme reduction in metabolic rate , heart rate and respiratory rate that…

Q: Which stage of chimpanzee development is most similar to adult Ardipithecus ramidus? To adult…

A: Introduction :- Evolution is defined as the descent with modifications and it is a never ending or a…