Answer:
amino acids
Explanation:
basic structural unit of proterin is amino acid and amino acids combined in to long chains
Two difference between axillary bud and terminal bud
please help im in a test
A housefly is
is an
arthopoda why
Answer:
Arthropods as Carriers of Pathogens
Many arthropods can contaminate or spoil food. Insects such as houseflies or cockroaches may regurgitate pathogen-contaminated fluids prior to or during feeding. They may also defecate, contaminating the food with potential pathogens.
How is a solar farm publicly accepted?
Answer:
because people enjoy there solar systems since people will be using less energy and it will be less expensive and also it is very useful
Explanation:
I hope this helps
help me thank you !!!
Answer:
3
Explanation:
because of the netrowns
During sexual reproduction, each parent contributes
A
a double helix of chromosomes.
B
one strand of chromosomes, or half of the new organism's DNA.
C
a dominant gene and a recessive gene.
D
multiple mutated cells.
Answer:
[tex]\boxed {\boxed {\sf B. \ One \ strand \ of \ chromosomes \ or \ half \ of \ the \ new \ organism's \ DNA}}[/tex]
Explanation:
Sexual reproduction involves gametes. These are sex cells (sperm for males and eggs/ovum for females).
These sex cells are formed during meiosis. During this process, two rounds of cellular division occur, so there are four resulting haploid cells. Haploid means they contain half of the genetic information.
These cells are haploid because during fertilization, a sperm and egg fuse to form a zygote. Each parent contributes half of the DNA to create one complete set of DNA.
Therefore, the best answer choice is B. one strand of new chromosomes or half of the new organism's DNA.
transfer of pollen grains from stamen to stigma is called
Answer:
Hey mate....
Explanation:
This is ur answer.....
Transfer of pollen grains from stamen to stigma is called POLLINATION....Hope it helps u!
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When we break down glucose, what energy molecule is produced?
the correct answer is adenosine triphosphate or ATP
Which statement is not true?
A. A virus cannot read its own genes.
B. Bacteria can make proteins identical to those found naturally in humans.
C. The DNA of a bacterium is loos in the cytoplasm.
D. Bacteria grow and replicate quickly.
Answer: i would say C
Explanation:
Adult muscle cells cannot become another type of cell because
Answer: because they will divide
The full-length (i.e., containing the entire protein-coding region) cDNA for a specific eukaryotic gene in humans is 1500 nucleotides long. You screen a pig genomic library with this cDNA and isolate two genomic clones of different lengths. Both clones are sequenced and found to be 1900 and 2100 nucleotides long from start codon to stop codon. Screening of genomic libraries of several other organisms reveals that all of them contain only one genomic clone -- pigs seem to be the exception to the rule here. What evolutionary events might have led to the presence of two genomic clones in pigs, and the discrepancies in their length compared to the cDNA probe
Answer:
In pigs, this gene suffered duplication and then paralogous genes diverged by accumulating mutations during evolution
Explanation:
Paralogous genes can be defined as evolutionarily related genes that emerged by duplication in a common ancestor of the two species being compared. Gene duplication is one of the most important mechanisms of genome evolution by which paralogous genes arise and acquire novel functions. After gene duplication, one of the two functional gene copies is prone to accumulate mutations because the organism has two genetic sequences to produce the same protein encoded by this gene. In consequence, it is expected that the cDNAs obtained from these genetic sequences show differences in nucleotide length.
El factor Rh- (r) en humanos es una característica que se hereda como un factor recesivo. Determine el genotipo de los parentales de las siguientes familias: - 1er caso: Dos padres con RH+ (R) tienen 5 hijos de los cuales 1 presenta el factor Rh- . - 2do caso: Un padre con factor RH+ y una madre con factor Rhtienen 6 niños de los cuales 3 son RH+ y 3 son Rh- - 3er caso: Un padre con factor RH+ y una madre que presenta un factor Rh- tienen 6 niños de los cuales son todos RH+ . Compruebe los resultados en cada caso. Ayúdenme porfa, estoy desesperada
Answer:
Caso: Ambos padres heterocigostos, Rr (Rh+)Caso: Padre heterocigoto Rr (Rh+). Madre homocigota recesiva rr (Rh-)Caso: Padre homocigoto dominante RR (Eh+). Madre homocigota recesiva rr (Rh-)Explanation:
El factor Rh+ es expresado por un alelo dominante que llamaremos R (Genotipo RR o Rr)El factor Rh- es expresado por un alelo recesivo que llamaremos r (Genotipo rr)1er caso: Dos padres con RH+ (R) tienen 5 hijos de los cuales 1 presenta el factor Rh-
si al menos uno de los hijos presenta el factor Rh-, entonces debe haber recibido un alelo recesivo r de cada padre. Por tanto los padres deben ser heterocigotos para el tipo de sangre Rh.
Parentales) Rr x Rr
Gametas) R r R r
Cuadro de Punnett) R r
R RR Rr
r Rr rr
F1) 3/4 =75% de la progenie es Rh+ (RR o Rr)
1/4 = 25% de la progenie es Rh- (rr)
2do Caso: Un padre con factor RH+ y una madre con factor Rh- tienen 6 niños de los cuales 3 son RH+ y 3 son Rh-
Entre los hijos de esta pareja hay algunos que muestran Rh+ y Rh-.
Si la madre es Rh-, entonces su genotipo es rr y solo tiene alelos recesivos r para pasar a la progenie.
Sabemos que el padre es Rh+, lo que indica que en su genotipo hay al menos un alelo dominante R. Puesto que la mitad de sus hijos tiene factor Rh-, podemos asumir que el hombre es heterocigoto para el tipo de sangre (Rr). De los contrario, de ser homocigoto dominante, toda la descendencia seria Rh+. El padre le hereda a la mitad de los hijos el alelo R y a la otra mitad el alelo r.
Parentales) Rr x rr
Gametos) R r r r
Cuadro de Punnett)
R r
r Rr rr
r Rr rr
F1) 2/4 = 1/2 = 50% de la progenie Rh+ (Rr)
2/4 = 1/2 = 50% de la progenie Rh- (rr)
3er caso: Un padre con factor RH+ y una madre que presenta un factor Rh- tienen 6 niños de los cuales son todos RH+
Si la madre es Rh- su genortipo es rr y solo puede heredarle a los hijos alelos recesivos, r.
El padre es Rh+, con lo que inferimos que el genotipo tiene al menos un alelo dominante R. Puesto que todos los hijos de esta pareja son Rh+, podriamos suponer que el padre es homocigoto para el tipo de sangre Rh+, heredandole a los hijos solo alelos dominantes.
Parentales) RR x rr
Gametos) R R r r
Cuadro de Punnett)
R R
r Rr Rr
r Rr Rr
F1) 100% de la porgenie es Rr, expresando el factor Rh+.
(Nota: Cabe aclarar en este último caso que es posible queel padre sea heterocigoto y aún no hayan tenido un hijo Rh-. )
If you had to explain the parts of an animal cell to your younger cousin, what comparison or example could you use for the cell and its organelles?
Answer:
a animal cell it tiny little pieces in the animal bodies
With complete dominance inheritance, the heterozygotes show a(n) _____ phenotype but with incomplete dominance heterozygotes show a(n) _____ phenotype.
dominant, intermediate
intermediate, dominant
dominant, recessive
lethal, intermediate
Answer:
Dominant, intermediate
Help brainliest involved!!:)
Answer:
the anwser is B. Scrapings from his teeth
Explanation:
hope this helps :)
Answer:
Scrapings from his teeth
Explanation:
He described 'moving animals' in the plaque between his teeth
Cows and mice have the same amino acid sequence for topoisomerase I, an enzymatic protein involved in unwinding the DNA double helix. The fact that these two different species have this identical amino acid sequence provides evidence that -
Answer:
They share a common ancestor
Explanation:
Due to having the same Amino acid sequence for Topoisomerase I, it can be inferred that during their evolutionary development, cows and mice had a common ancestor with that same amino acid sequence for Topoisomerase I.
What is the main function of the reproductive system?
A.) to transport substances
B.) to remove wastes
C.) to continue the species
D.) to make hormones
Answer:
Explanation:
D.) to make hormones
identify the four types of tissues that make up the human body
PLS HELP !!!!!
How can vestigial structures also be considered evidence for evolution?
They provide evidence for evolution because they suggest that an organism changed from using the structure to not using the structure, or using it for a different purpose.
Some rice has been genetically altered to include_______ which kids need
to stay healthy.
Answer:
beta carotene (Vitamin A)
Explanation:
PLS HELP
One important organelle that is found in plants, but not in animals is called chloroplast.
It is the site of _________.
Which of these cell parts serves the same function in plants as the skeleton does in animals?
A. Cell walls
B. Vacuoles
C. Chloroplasts
D. Mitochondria
Answer: i think it is B
Explanation:
which is not true about vasular plants ?
A)big size
B) have roots
C) don t have xylem
D)don t have leaves
d
Answer:
D) Don't have leaves
Explanation:
A plant being vascular should have leaves, since they identified by their lignified leaves itself.
how some cells know to be muscle and some know to be bone.
Answer:
Their genetic code
Explanation:
Every cell is made with a genetic code that tells them what their jobs are in the cell, it is from when they are first formed, basically
n mice, having black fur (B) is dominant to white fur (b). If two mice are crossed and the offspring are Bb, what is the phenotype? A Black fur B Grey fur C White fur D Hybrid
13. When each allele in a heterozygous genotype influences the phenotype and
They have both traits associated with the aileles it is called
Answer:
Polygenic Trait
Explanation:
A taits phenotype is influenced by more than one gene. Traits that display a continuous distribution, such as height or skin color, are polygenic.
Explain why the statement “adaptations are a choice” is NOT accurate.
Answer:
because animals/ plants will do instinctively it over a period of time in order for them to survive.
Explanation:
hope that helps : )
How many X chromosomes do males have in somatic cells?
Answer:
one X
Explanation:
Consequently, all of the somatic cells in human females contain two X chromosomes, and all of the somatic cells in human males contain one X and one Y chromosome (Figure 3).
Answer:
one X
Explanation:
Consequently, all of the somatic cells in human females contain two X chromosomes, and all of the somatic cells in human males contain one X and one Y chromosome (Figure 3).
The small fish is a natural predator of the diving beetle and the heron is a natural predator of the small fish. In an ecosystem, a new resort affected the heron population and caused it to decrease dramatically due to the destruction of their habitat. Ecologists noticed after a while that diving beetles also decreased. What type of interaction is this?
A.) Direct effect interaction
B.) Indirect effect interaction
Answer:
B- in-direct effect interaction
Explanation:
The majority of animals are insects. True/False
Answer:
the answer is false
Explanation:
the majority of animals are not insects
Which of the following describes how metamorphic rock forms?
A
Tectonic plate boundaries break apart an existing parent rock.
B
An igneous rock deep in the Earth is exposed to hot material.
C
Molten rock solidifies and hardens on top of the Earth’s crust.
D
A parent rock is baked and melted into liquid rock in the Earth.
An igneous rock deep in the Earth is exposed to high heat, high pressure, and hot mineral-rich fluids, by this process metamorphic rock forms, hence option B is correct.
What is a metamorphic rock?Metamorphic rocks are produced when rocks are exposed to high heat, and pressure, hot mineral-rich fluids, or maybe some combination of these factors, all these conditions are found deep on Earth.
In the deep of Earth, if an igneous rock deep in the Earth is exposed to hot material, this result forms a metamorphic rock.
This is also a result when rocks change their original shape and identity due to high heat or pressure, this pressure is only found deeper in the Earth.
Therefore, if an igneous rock deep in the Earth is exposed to hot material, it results in metamorphic rock.
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