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Marianna [84]
3 years ago
10

There are two different alleles for flower color, P and p. The image shows a white sweet pea that is labeled with its two allele

s for petal color.
What can you surmise from
the labeled image?

The genotype is heterozygous.

White petal color is a recessive trait.

White petal color is a dominant trait.

The phenotype is heterozygous.

Biology
2 answers:
aliina [53]3 years ago
8 0

Answer: The genotype is homozygous and white petal color is a recessive trait

Explanation:

The only way for a recessive trait to be present in the phenotype is if the genotype is homozygous homo meaning same ex. pp or PP heterozygous hetero meaning different ex. Pp

vredina [299]3 years ago
7 0

Answer:

There are two different alleles for flower color, P and p. The image shows a white sweet pea that is labeled with its two alleles for petal color.

What can you summarize from

the labeled image?

<em>White petal color is a recessive trait. </em>

<em></em>

Explanation:

From the image shown and the explanation above, P represents a dominant gene while p represents a recessive gene, hence; the image shown shows a recessive  homozygous trait. This implies that one of the parents has a recessive heterozygous trait i.e Pp X pp which gives Pp, Pp, pp and pp  

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The answer would be A. 500g because the candle would not lose mass despite being melted. Melting the candle is only a physical change and not a chemical change resulting in no change in the mass.

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2 years ago
Portal blood vessels connect two capillary beds found in the ________. A. hypothalamus and thalamus B. anterior pituitary and po
sdas [7]

Portal blood vessels connect two capillary beds found in the hypothalamus and anterior pituitary.

So, the correct option is C.

<h3>Hypothalamus-Pituitary Complex:</h3>
  • The "command center" of the endocrine system is assumed to be the hypothalamus-pituitary complex.
  • In addition to hormones that directly affect target tissues, this complex also secretes hormones that control the production and release of hormones from other glands.
  • Furthermore, the hypothalamus-pituitary complex controls the communications between the nervous and endocrine systems.
  • The hypothalamus-pituitary complex is frequently necessary for the translation of a stimulus into hormones that can start a reaction after it is received by the neurological system.
  • Additionally, the pituitary gland (also known as the hypophysis), a bean-shaped organ hung from the hypothalamus by a stem called the infundibulum (or pituitary stalk), is physically and functionally connected to the hypothalamus.
  • The sella turcica of the sphenoid bone of the skull serves as a cradle for the pituitary gland.
  • It has two lobes, the posterior pituitary (also known as the neurohypophysis), which is made of neural tissue, and the anterior pituitary (also known as the adenohypophysis), which is made of glandular tissue.

<h3>Anterior Pituitary:</h3>
  • The embryonic anterior pituitary develops from the gastrointestinal tract and moves toward the brain as the fetus grows.
  • The pars tuberalis is a thin "tube" that wraps around the infundibulum, the pars distalis is the most anterior, and the pars intermedia is next to the posterior pituitary.
  • Neurons secrete hormones from the hypothalamus, but blood arteries transport them to the anterior pituitary.
  • There is a capillary bridge that links the anterior pituitary and hypothalamus inside the infundibulum.
  • The hypophyseal portal system is the network that enables the delivery of hypothalamic hormones directly to the anterior pituitary without first passing via the systemic circulation.
  • The superior hypophyseal artery, a branch of the carotid arteries that carries blood to the hypothalamus, serves as the system's initial point.
  • The hypophyseal portal system is made up of the superior hypophyseal artery's branches.
  • The portal veins deliver hypothalamic releasing and inhibitory hormones into the anterior pituitary via a main capillary plexus.
  • Anterior pituitary hormones enter a secondary capillary plexus in reaction to hormones being released, and from there, drain into the blood circulation.
  • In the anterior pituitary, seven hormones are produced.
  • Separate hormones produced by the hypothalamus either promote or suppress the anterior pituitary's capacity to produce hormones.
  • The hypophyseal portal system is the route by which hormones from the hypothalamus get to the anterior pituitary.
  • Seven hormones are produced by the anterior pituitary.
  1. Beta endorphin,
  2. prolactin,
  3. thyroid-stimulating hormone (TSH),
  4. adrenocorticotropic hormone (ACTH),
  5. growth hormone (GH),
  6. follicle-stimulating hormone (FSH), and
  7. luteinizing hormone (LH).
  • Because they regulate the activity of other endocrine glands, the anterior pituitary hormones TSH, ACTH, FSH, and LH are together known as tropic hormones.

Learn more about " Anterior Pituitary ":

brainly.com/question/14704975

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6 0
1 year ago
I need help with my homework that is due tomorrow and I can not find the answers in the book or online.
scoray [572]

Animal regeneration can produce whole organism or parts of organism and repair injury.

Clones today are done at genetic level by using molecular biology techniques as compared to old days when only nucleus would be removed from the egg cell and desired nucleus is inserted for cloning.

Explanation:

Regeneration is a process in which whole organism or part of which is produced from pre existing cells or group of cells and tissue. Regeneration helps in maintaining the integrity of morphology and physiology.

In lower animals like hydra and planaria whole organism is generated by existing parts. This process is termed as totipotency.

In higher animals however injury repair by mitosis is an example of regeneration.

Plant structure involved in vegetative propagation are: bulbs, rhizomes and tubers.

Vegetative propagation can be done by grafting, cutting, bulb formation, tuber, layering and tissue culture methods.

Cloning is a process in which a genetical or identical copy of an organism or the cell is made by molecular biology techniques. The use of DNA sequences, molecular scissors, stem cells and plasmid are the latest techniques of cloning.

Cloning is used for treating serious diseases as diabetes and heart injury.

In old days one cell would have its nucleus removed and placed into the egg and eventually organism produced

Advantages of tissue culture:

From a single explants, large number of plants can be made.

Obtaining plants of desired trait from tissue culture is easy in short span.

No seeds are required for the growing of new plants.

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2 years ago
State two functions of vascular bundles in leaves
Musya8 [376]

Answer:

Functions of vascular bundle: Transportation of water and minerals from roots to other plant parts and leaves. Transportation of food from leaves to all other plant parts.

Explanation:

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6 0
1 year ago
Read 2 more answers
How would you differentiate between the coordination system of plants and animals?
Novay_Z [31]

Answer:

In the animals control and co-ordination is done by the  nervous system and endocrine system whereas in animals nervous system is adequately developed and consists of brain, spinal cord and nerves; in animals hormones are secreted by endocrine glands.

Explanation:

3 0
3 years ago
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