Term
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Definition
| NUCLEAR DIVISION PROCESS THAT REDUCES THE CHROMOSOMAL NUMBER BY HALF AND RESULTS IN THE FORMATION OF FOUR HAPLOID CELLS; OCCURS ONLY IN CERTAIN REPRODUCTIVE ORGANS |
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Term
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Definition
| PROCESS DURING WHICH THE CHROMOSOMES ARE REDISTRIBUTED TO TWO DAUGHTER NUCLEI; NUCLEAR DIVISION CONSISTS OF PROPHASE, METAPHASE, ANAPHASE, AND TELOPHASE |
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Term
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Definition
| LITTLE GROUPS OF FOUR CHROMATIDS |
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Term
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Definition
| DURING SYNAPSIS, FORMED WITHIN EACH TETRAD AS THE FREE ENDS OF ONE MATERNAL AND PATERNAL CHROMATID WRAP AROUNF EACHOTHER. |
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Term
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Definition
| BAR-LIKE BODIES OF TIGHTLY COILED CHROMATIN; VISIBLE DURING CELL DIVISION |
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Term
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Definition
| REPLICATION OF A CHROMOSOME TO MAKE TWO IDENTICAL CHROMATID |
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Term
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Definition
| 23 PAIRS OF SIMILAR CHROMOSOMES |
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Term
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Definition
| THE NUMBER OF CHROMOSOMES PRESENT IN HUMAN GAMETES IS 23 |
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Term
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Definition
| THE CHROMOSOMAL NUMBER CHARACTERISTIC OF AN ORGANISM, SYMBOLIZED AS 2n; TWICE THE CHROMOSOMAL NUMBER OF THE GAMETE IN HUMANS. 2n=46 |
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Term
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Definition
| GENES CODING FOR THE SAME TRAIT AND FOUND AT THE SAME LOCUS ON HOMOLOGOUS CHROMOSOMES |
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Term
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Definition
| THE PROCESS OF SPERM FORMATION INVOLVES MEIOSIS |
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Term
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Definition
| PROCESS OF OVUM FORMATION |
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Term
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Definition
| OUTERMOST TUBULE CELLS, WHICH ARE IN DIRECT CONTACT WITH THE EPITHELIAL BASAL LAMINA (STEM CELL) |
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Term
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Definition
| TYPE B CELL GETS PUSHED TOWARD THE LUMEN. DESTROYED TO PRODUCE FOUR SPERM |
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Term
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Definition
| DURING THE FIRST PHASE OF MEIOSIS I, FORMS TWO SMALLER HAPLOD CELLS. |
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Term
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Definition
| SECONDARY SPERMATOCYTES AFTER MEIOSIS, SMALL ROUND CELLS WITH LARGE SPERICAL NUCLEI; SEEN CLOSER TO THE LUMEN OF THE TUBULE. |
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Term
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Definition
| HELMET-LIKE, HEAD OF THE SPERM. CONTAINS HYDROLYTIC ENZYMES THAT ENABLE SPERM TO PENETRATE AND ENTER AN EGG |
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Term
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Definition
| TAIL PRODUCED BY THE CENTRIOLE |
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Term
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Definition
| DIPLOID STEM CELLS OF THE OVARY |
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Term
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Definition
| OOGONIA AFTER MITOSIS. BEGIN THE FIRST THE FIRST MIEOTIC DIVISION |
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Term
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Definition
| ONE OF THE TWO HAPLOID CELLS. LARGER IN SIZE, NEARLY ALL THE CYTOPLASM OF THE PRIMARY OOCYTE |
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Term
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Definition
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Term
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Definition
A)FIRST POLAR BODY- SMALLER CELL OF THE TWO HAPLOID CELLS
B) SECOND POLAR BODY- IF SPERM PENETRATION OCCURS, IT QUICKLY COMPLETES MEIOSIS II YIELDING ONE LARGE OVUM AND A TINY SECOND POLAR BODY |
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Term
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Definition
| FUSION OF THE SPERM AND EGG NUCLEI |
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Term
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Definition
| SIX TO SEVEN DAYS AFTER OVULATION |
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Term
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Definition
| PASSING ON OF CHARACTERISTICS FROM ONE GENERATION TO THE NEXT |
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Term
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Definition
| SCIENCE THAT DEALS ESPECIALLY WITH THE MECHANISM OF HEREDITY |
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Term
| DOMINANT-RECESSIVE INHERITANCE |
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Definition
| REFLECTS THE INTERACTION OF DOMINANT AND RECESSIVE ALLELES |
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Term
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Definition
| A DIAGRAM USED TO FIGURE OUT FOR A SINGLE TRAIT, THE POSSIBLE GENE COMBINATIONS THAT WOULD RESULT FROM THE MATING OF PARENTS OF KNOWN GENOTYPES |
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Term
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Definition
| CHROMOSOMES NUMBER 1 TO 22; DO NOT INCLUDE THE SEX CHROMOSOME |
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Term
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Definition
| THE CHROMOSOMES, X AND Y THAT DETERMINE GENETIC SEX. (XX=FEMALE; XY=MALE) THE 23RD PAIR OF CHROMOSOMES |
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Term
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Definition
| ALLELE IS MASKED BY ITS PARTNER |
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Term
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Definition
| ONE ALLELE MASKS OR SUPRESSES THE EXPRESSION OF ITS PARTNER |
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Term
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Definition
| HAVING DIFFERENT ALLELIC GENES AT A GIVEN LOCUS OR (BY EXTENSION) MANY LOCI |
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Term
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Definition
| THE HETEROZYGOTE HAS A PHENOTYPE INTERMEDIATE BETWEEN THOSE OF HOMOZYGOUS DOMINANT AND RECESSIVE INDIVIDUALS |
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Term
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Definition
| INHERITED TRAITS DETERMINED BY GENES ON THE SEX CHROMOSOMES, E.G. X-LINKED GENES ARE PASSED FROM MOTHER TO SON, Y-LINKED GENES ARE PASSED FROM FATHER TO SON |
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Definition
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Term
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Definition
| OBSERVABLE EXPRESSION OF THE GENOTYPE |
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Term
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Definition
| ONE'S GENETIC MAKEUP OR GENES |
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Term
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Definition
| 2 CELL STAGE/ 4 CELL STAGE |
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Term
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Definition
| 8 CELL STAGE/ 16 STAGE CELL; MORULA |
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Term
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Definition
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Term
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Definition
| EARLY BLASTULA/ LATE BLASTULA |
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Term
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Definition
| EARLY GASTRULA/ LATE GASTRULA |
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